Why is there no sweat smell? Constant sweating and unpleasant armpit odor

Sweating is a natural process carried out by the sweat glands. Normally, sweat is colorless and odorless. An unpleasant aroma may occur when eating foods containing garlic or onions. In some situations, the smell of sweat under the arms is so strong that it cannot be eliminated using a variety of cosmetics. The cause of this problem may be diseases of the internal organs.

Causes of the problem

The unpleasant smell of sweat causes psychological discomfort to a person. It appears under the influence of the following reasons:

release of an increased dose of adrenaline with strong excitement;
hormonal imbalance in the body during menopause;
long-term use of antibiotics;
blockage of sweat glands due to improper use of antiperspirants;
diseases of internal organs. A pungent odor can be caused by pathologies of the cardiac, nervous and endocrine systems.

Important! One of the reasons for increased sweating is wearing tight clothing made from synthetic materials. Therefore, you need to give preference to products made from natural fabrics.

Natural causes of unpleasant odor

There are cases when you should not worry about a strong odor in the armpit area. With intense physical training, the human body spends a lot of energy, the work of the sweat glands becomes more intense. Also, an unpleasant aroma appears when staying in a stuffy room.

Increased sweating can be caused by a stressful situation. When a person is worried, thermoregulation is disrupted. Representatives of the fair sex are especially susceptible to emotional swings. You can get rid of an unpleasant odor caused by strong anxiety using medications with a sedative effect. Additionally, you can take infusions of medicinal herbs that have sedative properties.

Important! Increased sweating is often observed in adolescents. This is due to hormonal changes that occur during adolescence.

In order to get rid of increased sweating that occurs in hot weather, you can mix 2 tbsp. l. baking soda and two drops of lemon juice. The resulting product should be rubbed into the armpits before going outside.

You can also use this simple recipe:

30 g of vanillin is poured into 100 ml of water.
Add 1 tsp to the resulting mixture. alcohol

The product should be carefully applied to the problem area or clothing using a spray bottle.

Diseases that cause excessive sweating

The actual question is: what diseases lead to the appearance of a strong odor in the armpits? An unpleasant odor occurs in the presence of the following pathologies:

malignant diseases;
chronic liver diseases. They lead to the appearance of an unpleasant odor of acetone in the armpit area;
tuberculosis;
diphtheria. With this disease, sweat often acquires a sweet smell;
diseases of the digestive system. The presence of such pathologies may be indicated by a “fishy” smell of sweat.

Important! If the occurrence of a strong aroma is caused by chronic diseases, you should not purchase expensive cosmetics - you need to eliminate the very cause of increased sweating.

When should you see a doctor?

If your sweat takes on the aroma of vinegar, you should not hesitate to visit the clinic. An unpleasant odor may indicate excessive iodine content in the body. A strong aroma of vinegar may appear in people who have been taking medications containing this trace element for a long time.

The problem also appears if a woman has mastopathy. This disease occurs due to the following reasons:

reproductive dysfunction;
predisposition to mastopathy, inherited;
lack of regular intimate relationships;
excess body weight;
thyroid diseases.

Pathologies such as inflammation of the appendages, endometriosis and polycystic ovaries also lead to the development of mastopathy.

The disease is characterized not only by a pungent odor of sweat. With mastopathy, a woman's lymph nodes located under her arms become enlarged. With this disease, pain appears in the area of the mammary glands. The discomfort usually increases with pressure on the chest. A characteristic symptom of mastopathy is the appearance of compactions in the area of the mammary glands.

A person suffering from diabetes may have a strong smell of vinegar in the armpits. Increased levels of glucose in the blood are indicated by symptoms such as fatigue, extreme thirst, frequent urination, and a feeling of dry mouth.

You should also contact a specialist if your sweat smells like urine. When kidney function is impaired, the body tries to remove accumulated fluid through the sweat glands. Sweat with the aroma of urine can be a symptom of kidney failure, pyelonephritis and other pathologies of the genitourinary system. To treat these diseases, medications with diuretic and anti-inflammatory properties are used.

A person suffering from kidney disease needs to follow a strict diet. In order for the pungent aroma of sweat to become less pronounced, you need to exclude the following foods from your diet:

garlic;
sour dishes;
pickled vegetables;
smoked meats;
fast food;
asparagus;
spices.

Vegetable salads, berry jelly, and foods rich in fiber must be included in the patient’s diet. In order to reduce the secretion of sweat glands, you can eat foods rich in chlorophyll. It is found in lettuce, cabbage and spinach. Chlorophyll is also present in various dietary supplements.

Eliminating the unpleasant odor of sweat using folk remedies

Using traditional medicine recipes, you can temporarily eliminate the pungent aroma of sweat. Oak bark decoction contains a lot of tannins - the product helps reduce sweating.

The decoction is prepared according to the following scheme:

3 tbsp. l. Oak bark is filled with 200 ml of water.
The resulting mixture must be heated in a water bath for at least 30 minutes.
Then the product is filtered.
Boiled water is added to the drink. The total volume of the medicinal decoction should be 0.3 liters.

It is recommended to place the product in a cool place. The shelf life of the medicinal decoction is 48 hours. The resulting solution should be wiped over problem areas of the body twice a day. You can add a small amount of lemon juice to the medicinal decoction. The drink refreshes the skin and gives it a pleasant fruity aroma.

Walnuts are also used to prepare folk remedies. It is used to prepare an alcohol tincture, which must be rubbed into the armpit area.

The product contains the following ingredients:

12 g nuts;
0.5 l of alcohol.

To prepare a medicinal tincture, you need to place walnuts in a glass container and fill them with alcohol. The product is kept for two weeks in a dry place, protected from sunlight. After the specified time has passed, you need to strain the alcohol tincture.

This method of eliminating the unpleasant odor of sweat is contraindicated for people with dry skin - the medicinal tincture contains alcohol, which dries out the epidermis.

If you have an unpleasant smell of sweat during menopause, you can prepare an infusion based on sage leaves. The product should be taken three times a day 30 minutes before meals.

An infusion of sage leaves is prepared as follows:

3 tbsp. l. The medicinal plant is poured into an enamel bowl.
Plant raw materials are poured with 200 ml of boiling water.
Cover the container with a lid.
The product must be infused for at least 15 minutes.
Then the resulting infusion is cooled and filtered.

The armpits are also wiped with rosemary essential oil mixed with water in a 1:1 ratio. The product has pronounced bactericidal properties.

Application of Botox

Botulinum toxin neutralizes the activity of the sex glands, which helps eliminate the unpleasant aroma. The effect of the cosmetic procedure lasts for a period of 6 months to one and a half years. Botulinum toxin injections are not recommended during pregnancy and breastfeeding. They are contraindicated in case of individual sensitivity to the components of the drug, severe kidney disease, liver disease, chronic pathologies of the hematopoietic system.

Conclusion

If a person has an unpleasant odor under their arms, there is no need to panic. An unpleasant odor can be caused by natural causes. If you notice a strong odor of urine or vinegar in the armpit area, you should consult a doctor.

In normal physical condition, a certain amount of fluid is produced daily in the armpit area, which is gradually removed outward to the surface of the skin. If a person is not sick, there are no other accompanying factors that provoke the work of the sweat glands, the excreted sweat has practically no odor and appears in small quantities.

The natural process remains virtually unattended, without causing discomfort or other problems. When the work of the sweat glands is additionally stimulated by something, the liquid acquires an unpleasant odor and a stench begins to be felt in the armpits. The amount of sweat increases noticeably, and a condition develops that doctors call hyperhidrosis.

Increased sweating is not just a constantly wet area of the armpits, marks on clothes, we are talking about severe discomfort, sometimes preventing a person from leading a normal lifestyle. Modern medicine has long been concerned with the causes of hyperhidrosis and ways to eliminate it.

Causes of armpit sweat odor

Increased sweating in the armpit area sooner or later begins to provoke the appearance of unpleasant odors. Sweat acquires odors for two reasons, the first is related to the metabolic processes of the body, the amount of toxins and other harmful substances, which, when excreted, are mixed with the separated liquid and, protruding onto the surface of the skin, when interacting with oxygen, begin to emit unpleasant odors. The second is hidden in the fact that the skin contains a large number of different microorganisms. Pathogenic microorganisms, during the process of their life activity, produce a mass of harmful substances when they find themselves in a favorable environment, and sweat is just that, life activity intensifies, and with it the accumulation of odors.

This phenomenon is facilitated by a number of factors, most of which, with a skillful approach, a person can completely eliminate on his own, without even seeking medical help.

This includes:

lack of proper hygiene;
use of low-quality products when washing the axillary area;
a person constantly wears tight clothes;
synthetic clothing interferes with normal air exchange;
clothing is selected “not according to the weather”;
To eliminate sweating, low-quality antiperspirants are used or the products are applied to a dirty body;
sudden excitement, irritation, stress, everything that indicates emotional instability of the individual can provoke increased sweating;
overheating, hypothermia of the body;
excessive alcohol consumption;
constant excessive physical activity;
playing sports;
long-term medication use;
therapeutic procedures that provoke individual intolerance to the selected methods;
the development of a certain pathology, possibly of a chronic nature. In this case, the smell of sweat not only smells unpleasant, but simply emits terrible aromas of ammonia, urine, feces, acetone, alcohol;
hereditary, genetically determined factor.

Each case is individual and sometimes, in order to find the true root cause, to understand what causes the smell of sweat in the armpits, you need to take the help of a specialist. Especially when it comes to the simultaneous impact of several provoking factors. The ways to eliminate the phenomenon directly depend on what provokes them.

How to remove armpit odor

Finding out the reason for the appearance of such an unpleasant phenomenon, you just need to try to eliminate it. Oddly enough, doctors do not treat hyperhidrosis. Experts identify provoking factors, and if it comes to seeking professional help, then most likely this is a pronounced or quietly developing pathological process.

Doctors will prescribe a medicinal course of treatment for the underlying disease, and additionally prescribe certain physiotherapeutic procedures. Such a phenomenon as increased sweating in the armpits goes away without a trace as the main symptoms of the developing pathology are suppressed.

If medical examinations do not reveal any developing diseases, then doctors suggest using more radical methods to eliminate increased sweating in the armpits:

remove part of the sweat glands;
block the functioning of some glands by injecting certain drugs under the skin;
injection of the axillary area with special medications.

Each technique is unique, differing in both advantages and disadvantages. In some cases it has its contraindications. However, for whom this method is suitable for health reasons, sweating in the problem area can actually be eliminated, while the pungent odor of sweat in the armpits also disappears without a trace.

These procedures are considered safe for absolutely healthy people; the release of sweat is blocked only in the armpit area, while the main part of the glands remains functioning and the liquid, evenly distributed over other parts of the body, is gradually removed out, remaining almost invisible.

How to deal with armpit sweat odor

When it is not possible to seek help from doctors, or due to health reasons it is simply impossible to block the work of the sweat glands, then you can eliminate sweating yourself at home.

Just follow these simple procedures:

systematically, preferably twice a day, wash the armpit area with soap solutions;
Apply pharmaceutical antiperspirants to dry, clean skin, which are highly effective and long-lasting;
sprinkle dry skin with baking soda, the substance in the right amount will clog the pores, which will reduce sweating and prevent the appearance of an unpleasant odor, everything “extra” will simply fall off;
At night, the axillary area can be treated with burnt alum and washed off in the morning;
Wipe problem areas with alcohol and vodka. However, it is not recommended to overuse this procedure due to the appearance of increased dryness, which can lead to irritation, itching, and microtrauma of the skin;
When performing morning and evening hygiene procedures, use decoctions of oak bark, chamomile, celandine, sage, St. John's wort. When brewing herbs like regular tea, add an additional tablespoon of lemon juice to each glass;
Baking soda and corn starch are added in equal volumes to essential oils of tea tree and lavender, taken 10 drops each. The resulting powder is used as a powder at night;
Every day before water procedures, apply grated potatoes to the skin, leave for 20 minutes, wash off the pulp;
1.5 tbsp. l. vanilla extract is combined with 50 ml of water, a teaspoon of alcohol, wiped with this solution up to two times a day;
Daily wiping with apple cider vinegar will help eliminate the phenomenon of unpleasant odor;
wipe the skin with lemon juice;
In addition, you can use common pharmaceutical products, for example, a solution of Formidron, Formalin, Magnesia, Boric acid. When choosing this method, the drugs should be used according to the manufacturer’s instructions, having first read the contraindications and possible side effects.

If during home treatments the condition noticeably worsened, the smell of sweat in the armpits changed, hyperhidrosis began to appear in other areas, for example, on the chest, back, and back of the head. This means that the problem is not so simple that you can fix it yourself; you need to see a doctor to get professional help. In this case, there is a high probability of developing some kind of disease, which should be cured as soon as possible.

What causes the unpleasant odor of sweat

Not only developing pathology, but also poor nutrition can provoke the appearance of an unpleasant odor of sweat. Some foods, consumed in large quantities, in one state or another of the body can provoke the appearance of unpleasant odors from the skin in general.

So, in hot weather, you should limit your consumption of:

Luke;
garlic;
salty;
fat;
spicy;
acute.

Try not to drink alcohol and highly carbonated drinks. Do not overeat, include more greens, fresh vegetables, and fruits in your diet. It would be good to diversify your diet with cereals and dietary meat.

When faced with the phenomenon of increased sweating in the armpit area, you should not diagnose yourself and then unsuccessfully change one pharmaceutical drug to another.

Until the root cause is identified, the problem cannot be solved. Yes, such methods of eliminating unpleasant odors emanating from the armpits will be effective for some time, even highly effective, however, if, due to your own oversight, you manage to “overlook” the development of chronic pathology, then not only will sweating return, but health problems will begin.

Sweating is a normal physiological process characteristic of every person. With the release and subsequent evaporation of sweat, increased heat transfer by the body occurs. The strong smell of sweat is more characteristic of men; many other substances and toxins are released with liquid secretions, which give men’s sweat a specific smell. In women, the intensity of the odor of sweat is much lower, but in some cases it may intensify or change, which indicates development of pathology.

A strong smell brings a lot of inconvenience, forcing a woman to be constrained in her movements and limit her physical activity. Some may develop strong complexes and worries about their smell, which will lead to isolation and isolation from others. Such stressful situations depress the female psyche too much, which can provoke the development of depression. Therefore, many try to get rid of this phenomenon on their own, in most cases simply masking the smell without eliminating the cause.

Causes

Correct treatment of this pathology consists in identifying and eliminating the cause that provoked its appearance.

The main reasons are:

Important

In any case, if you notice a strange smell of sweat in women, you should seek medical help. This phenomenon may be a sign of serious illness.

Prevention

In order to protect yourself from the appearance of severe sweating, as well as the occurrence of smelly sweat, you must first of all adhere to basic hygiene standards. It is necessary to bathe every day, brush your teeth, wash your hands before eating and upon returning from the street. If necessary, you need to purchase suitable hygiene products, cosmetics, deodorant or antiperspirant.

To prevent the occurrence of diseases of internal organs, it is recommended to adjust your diet, eat more vegetables and fruits. Do not abuse alcohol, sweet, salty, fatty and spicy drinks. It is recommended to control your drinking regime. Water must always be supplied in the required quantity, but even in this case, abuse may be inappropriate.

The main role is played by woman's mental state. It is recommended to avoid stressful situations at work or in life, to be less nervous and worried.

When to see a doctor

Important It is not recommended to attempt treatment on your own.

If an unpleasant odor of sweat suddenly appears against the background of general well-being and health, you need to seek help from a dermatologist or endocrinologist. Specialists in these areas will conduct all the necessary research and find out the reason for the appearance of such a smell. It must be remembered that a sharp, bitter, unpleasant odor of sweat can hide a serious disease, the treatment of which requires qualified help.

Sweat stains in the armpits can ruin the reputation of the most successful person. They cause a lot of inconvenience, from their unsightly appearance and pungent odor to damage to clothing with faded stains on the fabric.

Caring housewives and hygiene experts have developed many ways to get rid of sebaceous gland secretions in the armpit area. A wide range of products includes industrially produced formulations: talc, anti-sweat aerosol or stick, tablets and injections, even special linings for clothing. Fans of folk remedies have collected recipes for special decoctions and infusions that reduce the level of sweating.

Causes

When faced with the problem of increased sweating, most people begin to pay close attention to body hygiene. At the same time, frequent use of detergents dries the skin and leads to its early aging. If, according to external parameters and a person’s well-being, the release of sweat and the specific smell of this process really differ from the norm, then one should look for the reason for this reaction of the body and work to eliminate it.

The causes of increased sweating can be various factors:

Increasing testosterone levels: during certain periods of a person’s life (puberty, menopause), hormonal changes in his biological processes occur.
Experiencing stressful situations: a person’s excitement before important negotiations or acquaintances contributes to an increase in adrenaline in the blood and the release of perspiration.
Excess weight: obesity leads to disturbances in metabolic processes and thermoregulation, during which sweating becomes more intense.
Diseases of internal organs: disturbances in the proper functioning of even one of the body systems leads to hyperhidrosis and changes in the smell of sweat (in case of liver problems, the secretion smells like acetone, in case of diphtheria, a sweetish odor appears, in case of digestive disorders, sweat acquires the smell of hydrogen sulfide).
Taking certain medications can cause hyperhidrosis.
Lack of a balanced diet: excessive consumption of spicy, fatty, fried foods, strong coffee, tea, fast food, and alcoholic drinks provokes increased sweating and changes in the composition of the secretion of the sebaceous glands.
Physical activity: increased physical activity causes an increase in body temperature, in response to which the body reacts by secreting sweat for thermoregulation.
Failure to comply with hygiene standards: the need to remove hair in the armpit, regularity of water procedures.
Violation of hygiene rules by excessive use of detergents: frequent use of antibacterial soap causes the washing out of the body's own microflora, reducing the protective functions of the biological environment, which leads to the development of pathogenic bacteria and an unpleasant odor.
Clothing made of synthetic materials: windproof artificial fabric interferes with ventilation and air access to the human skin, creating a “greenhouse effect”, thereby provoking the release of sweat.

Ways to get rid of sweat

A responsible attitude towards the factors listed above that cause increased sweating will help you get rid of the smell of sweat under your arms forever. If the cause is not found, then you should take the measures recommended by experts:

take a shower twice a day, morning without detergents, evening with moisturizing soap;
during upcoming stressful situations, engage in self-conviction, drink tea with chamomile, lemon balm, mint, and in difficult situations, take herbal sedatives;
conduct a complete diagnostics of the body to identify diseases of the internal organs;
switch to proper nutrition or at least reduce the consumption of fatty, fried, spicy foods;
include foods containing phosphorus, iron and calcium in your diet;
replace tea and coffee with herbal infusions;
normalize physical activity on the body;
carefully study the instructions for medications that are currently used; they may have a side effect, causing increased secretion of the sweat glands;
remove clothes made from artificial synthetic materials from your wardrobe.

If the proposed measures do not help reduce sweating, the smell still remains pronounced, then it is recommended to periodically use special products in the armpit area. The compositions offered by experts can be in different forms: cosmetics, pharmaceutical drugs, folk recipes based on decoctions and tinctures.

Cosmetical tools

A quick solution to the issue is to use cosmetics that, with their composition, help get rid of the pungent odor of sweat.

Devices of this type can be of the following types:

deodorants - designed to stop the proliferation of bacteria, creating an unfavorable habitat for them, and eliminate unpleasant odors;
antiperspirants - capable of blocking the activity of sweat glands due to the presence of metal salts in their composition;
antiperspirant deodorants - combines the advantages of the first two, intended for people with an active lifestyle.

For people with irritable skin and teenagers from the presented types, it is recommended to use deodorants. The composition of these devices contains a minimum amount of aggressive components, fragrances, and perfumes. Adults with obvious problems with increased sweating during intense training and physical activity are recommended to use an antiperspirant deodorant.

Pharmacy drugs

If the process of hyperhidrosis is pronounced and causes inconvenience, then medications should be used. The compositions of these products help to permanently eliminate increased sweat production on the palms, under the arms, and on the legs. Such drastic measures are taken only if the recommendations of the specialists outlined earlier have been previously followed.

Medicines to reduce sweating:

Lassara paste for daily use based on zinc normalizes the functioning of the sweat glands. Used for at least a month.
Salicylic-zinc ointment with zinc oxide is similar to a paste, dries the skin, thereby blocking the activity of the sweat glands. Acetylsalicylic acid in the composition of the drug helps to destroy bacteria, the waste products of which create an unpleasant odor.
Galmanin in powder form contains zinc and salicylic acid to achieve an antibacterial effect.
Formidone - an inexpensive solution is used in extreme cases in the absence of effect from other means of reducing sweating. Such caution in prescribing the drug is due to the presence of formaldehyde in its composition, which negatively affects the functioning of the reproductive organs and the central nervous system.
Teymurov's paste contains a high concentration of zinc oxide. Valid for a short time - up to three days. For patients with problematic or sensitive skin, the drug is contraindicated, as well as for people with poor health, aggravated by chronic diseases, and pregnant women.

In addition to the listed industrial products, clothing pads, the hypoallergenic composition of which can normalize the functioning of the sweat glands, are no less effective. They can be used for clothes made of any materials, which will ensure their safety and the absence of white sweat stains. For the convenience of users of such devices, manufacturers have thought out different sizes and shapes of gaskets.

Folk recipes

If no visible reasons for increased sweating were found during the first analysis, and there are no medical reasons for this either, then it is recommended to use pharmaceutical drugs or folk remedies. The former have many limitations and side effects; they are contraindicated for the body burdened with chronic diseases, for people with irritable, delicate skin.

Folk remedies have a more gentle effect and, despite the need for long-term use, are guaranteed to provide the desired result.

The latter include:

table salt, baking soda;
pharmaceutical herbs: oak bark, chamomile flowers;
natural lemon juice, potato juice.

Salt and soda

Some common household powders and cleaning products have a beneficial effect on the pores of the skin of the armpits. The advantages of the recommended method of combating excessive sweating are gentle and safe. The only drawback is the need for long-term use to achieve the desired result.

Add two tablespoons of salt to a glass of warm water and stir thoroughly. Gauze or other cotton material is moistened in the resulting solution. Lubricate before intense physical activity, apply for some time before going to bed, at least a quarter of an hour.

When using baking soda, dissolve a teaspoon of powder in a glass of boiling water. Wait for the solution to cool, add three drops of tea tree essential oil. The resulting composition is wiped over clean skin three times, evenly distributing the procedures throughout the day.

Herbal decoctions

The recommended herbs can be easily purchased at a pharmacy without a prescription; their gentle action allows you to solve the problem of sweating even in a child. With regular use of the recommended decoctions, you can be guaranteed to eliminate profuse sweating within a month. The most effective herbs include oak bark and chamomile flowers.

Five tablespoons of oak bark are poured into two glasses of water and heated. When the composition boils, remove the container from the heat and leave under a closed lid for some time, but not less than two hours. After the specified time, filter the liquid and wipe the problem areas with the resulting composition several times a day.

Three teaspoons of chamomile flowers are poured into half a liter of boiling water. Leave until the liquid cools to room temperature. The liquid is filtered and a teaspoon of baking soda is added to the resulting broth. The resulting composition is used to treat the armpits twice a day: morning and evening.

A change in the smell of sweat may be the first symptom that indicates the development of a pathological process in the body. Sweating is a normal physiological process, which, if hygiene is insufficient, is accompanied by an unpleasant odor. There are a number of signs by which the disease can be distinguished and detected in the early stages.

This is an integral process of thermoregulation, which helps the body cope with rising temperatures, avoid overheating and remove excess salts and toxins. Sweat glands are densely entwined with nerve endings, so any change in homeostasis, the sympathetic nervous system, or the release of stress hormones have an immediate impact on their work.

To balance internal temperature in the body, there are 2 types of sweat glands:

eccrine - located evenly over the entire surface of the body; during the production and release of secretions, the integrity of the organ is not compromised, they remain functional for a long time;
apocrine - located in uneven clusters, mainly in the armpits, on the areola, forehead skin and around the anus; During secretion production, part of the organ (apex) is destroyed, and recovery takes some time.

Depending on the type of sweat gland, the secret secreted is different according to its consistency and other characteristics. For example, the eccrine type of sweating has an odorless liquid secretion, it is close to the density of water and is released along with toxins. This composition provides an acidic reaction and protects the skin from the penetration of pathogens.

But apocrine glands produce more viscous sweat with a specific odor, which is explained by the partial destruction of the secretory organ.

The unpleasant odor of sweat can be felt due to the proliferation of bacteria, which are always present on the skin.

Sweat represents a favorable environment with nutrients and acceptable temperature conditions necessary for the activation of microorganisms.

Causes of unpleasant odor

There are several reasons why sweat starts to stink. You need to take a close look at the changes and possible new symptoms in order to exclude or promptly diagnose a dangerous pathological process.

There are physiological and pathological reasons for the appearance of a strong odor of sweat.

Physiological reasons

If the prerequisite for an unpleasant odor is a physiological, reversible process, there is no reason to worry.

These could be:

lack of proper hygiene- dirty linen, clothes and unwashed skin are the main sources of odor, since newly formed microflora with an unpleasant aroma multiply in quantity;
spicy food, spices- such supplements activate the sympathetic nervous system and the work of apocrine and eccrine sweat glands by stimulating smooth muscles; the formed toxins themselves have an unpleasant odor and serve as an excellent breeding ground for many bacteria;
poor nutrition and frequent consumption of fast food - the body tries to get rid of incoming toxins and harmful products as quickly and efficiently as possible, therefore sweating increases to ensure excretory function;
stress and psychological breakdowns- nervous overstrain leads to activation of the sympathetic autonomic system, which ends in the release of the stress hormone - adrenaline. The body quickly reacts to changes in the internal environment, as a result of which the smooth muscles of the apocrine sweat glands contract and a specific viscous secretion with an unpleasant odor is released.

A pungent odor of sweat may also appear due to certain diseases. If the above conditions have been excluded, but the smell remains, you should be examined by a specialist.

After all, such a symptom can be the beginning of a serious pathology:

Sometimes the color and smell of sweat can determine the disease that caused these symptoms.

Fungal pathology is accompanied by an unpleasant mouse odor; it can also be compared to the smell of unwashed socks.
The aroma of acetone can be felt not only from sweat, but also in the breath when kidney function is impaired.
If there is sweat, most likely there is a problem with the liver, it cannot cope with the removal of waste products.
Diabetes mellitus is almost always accompanied by active sweating and a sour odor, sometimes with.
Sweat can give off vinegar in infectious diseases, pathologies of the respiratory system and endocrine disorders.
If you smell rotten meat or fish, this may be a sign of cancer.
The sweet aroma of sweat will alert the patient and the doctor to the possible development of a pseudomonas infection or diphtheria.

Recommendations To avoid the appearance of sweat odor, you need to regularly perform hygiene procedures, use antiperspirants and do not forget to change clothes and underwear. Preference should be given to natural fabrics; synthetics interfere with free heat exchange, as a result of which sweating and the growth of bacterial flora are activated.

If hygiene is maintained at the proper level, hyperhidrosis and physiological causes are excluded, you should consult a dermatologist or endocrinologist. It will help you find out why your sweat began to smell unpleasant. Comprehensive diagnostic methods and treatment of the underlying problem will get rid of the unpleasant odor and prevent complications of the underlying pathology.