Why Does My Night Sweat Smell Like Vinegar?

Corynebacteria. Sweat that has a strong vinegar or other odor can be a sign of a corynebacteria skin infection.

Why does my nighttime sweat have a vinegary smell?

A person can get diabetic ketoacidosis if they do not manage their diabetes. If the cells are unable to obtain adequate glucose for utilization, the body will then burn fat too quickly for energy.

Ketones are created when the body burns fat, making the blood more acidic as a result. Additionally, metabolites like acetone are released into the perspiration, giving it a potentially vinegar-like odor.


The bacterial Corynebacterium causes trichomycosis, also known as trichobacteriosis or trichomycosis axillaris, which is an infection of the underarm hair or other regions.

According to a 2013 study, 92% of trichomycosis infections had an impact on the underarm hair. Trichomycosis can very rarely affect pubic hair.

Nodules that adhere to the hairs beneath the arms, around the genitals and buttocks, or on the skin may be yellow, black, or red.

According to the 2013 study, odor was a symptom of trichomycosis in 35.7% of cases. Sweat may be black in color or have an acidic smell similar to that of vinegar.


The eccrine glands in a person with hyperhidrosis cause them to sweat excessively. According to a 2016 study, about 5% of Americans suffer hyperhidrosis.

Primary focal hyperhidrosis and secondary hyperhidrosis are the two forms of hyperhidrosis.

A different medical condition or drug does not cause primary focal hyperhidrosis to develop. Focal signifies that different bodily parts are affected by the perspiration. This can apply to the forehead, hands, feet, and underarms.

Secondary hyperhidrosis refers to excessive sweating that is brought on by an underlying medical disease or a pharmaceutical side effect.

It may smell like vinegar when perspiration and germs combine on the skin.


A rare condition is trimethylaminuria. Someone who has trimethylaminuria might realize that their sweat smells bad. This is due to the fact that the chemical trimethylamine, which smells like fish, cannot be broken down by the body.

Why is the smell of my sweat at night sour?

Sleeping and smelling something unpleasant? Even though nighttime body odor is rarely at the top of the list of major health issues, it can nevertheless be upsetting and unsettling. While nighttime body odor is typically nothing to worry about, excessive perspiration could indicate benign hyperhidrosis or a more serious condition.

There are a few potential causes for that sour nocturnal body odor, according to Adam Friedman, MD, professor and chair of the Department of Dermatology at the George Washington University School of Medicine and Health Sciences.

How can I stop the vinegar-like odor that comes from my sweat?

To assist block sweat pores and lessen the quantity of vinegar-smelling perspiration that gets to your skin, use Duradry PM antiperspirant. Wear clothing made of natural materials like cotton, wool, and silk that allow your skin to breathe. You can also experiment with natural treatments for hyperhidrosis.

What odor does diabetic sweat have?

The aroma of someone’s perspiration is influenced by a variety of factors. Body odor can be affected by diet, physical activity, and bacterial illnesses.

Sweating that smells like ammonia can also be a sign of a health issue like diabetes or renal disease.

Deodorants can be used to mask scents, and antiperspirants can be used to lessen sweating. To help lessen the ammonia smell in perspiration, a doctor can treat any underlying medical issues.

When should I worry about having nocturnal sweats?

If you routinely wake up throughout the night with night sweats that worry you, see a doctor. have a cough or diarrhea, as well as a very high temperature (or feel hot and shivery). having night sweats and are unnecessarily losing weight.

What scent does stress sweat have?

After a brutal exercise, many guys may leave the gym covered in sweat and still smell rather good. You’ll be soaked, for sure, but you won’t smell bad.

But what happens when you’re scheduled to make a presentation in front of the entire staff? Your sweat then starts to smell horribly bad.

Not so fast, says organic chemist George Preti, Ph.D., who studies the causes of human scents at the Monell Chemical Senses Center. Your body actually has two separate types of sweat glands.

The liquid sweat that covers your body after a strenuous run is produced by eccrine glands. Whether from exertion or heat, this perspiration forms all over your body and cools your body as it evaporates.

But according to Preti, when you experience psychological stress, your apocrine glands, which are typically only located in the area beneath your arms, become active. When you’re nervous or afraid, this sweat has a powerful, occasionally even sulfurous smell.

According to Ramsey Markus, M.D., associate professor of dermatology at the Baylor College of Medicine, stress also causes your body’s sympathetic nervous system to become active, which can trigger symptoms like a racing heart, sweaty palms, and a parched mouth.

According to Dr. Markus, M.D., while most of the sweat we create while exercise is made up of water, apocrine gland sweat has a higher amount of fat, lipids, and proteins.

This is terrible news for the person sitting next to you since those bacteria produce fatty acids and ammonia, which he claims gives out a strong stink. Bacteria prefer to feed on that combination.

Stress perspiration doesn’t truly produce that much moisture under your pits, despite the fact that it may smell, Dr. Markus continues. Its powerful odor may have made you notice it more. But if you have excessive sweating on a regular basis (a condition known as hyperhidrosis), you can feel both too much sweat and too much funky, according to him, which would make it twice as uncomfortable. (This is the reason you may perspire more than other guys.)

What then is the cause of the raunch? According to Preti, there may be an evolutionary explanation for why apocrine glands activate the stench even though scientists are unsure of the cause. Even animals release an odor while under stress. He says the scent serves as a warning to its peers that something scary or harmful is taking place.

According to another notion, our ancestors may have experienced tension similar to that experienced when they were attacked by an animal, says Dr. Markus. Scientists hypothesize that we may have evolved to emit this odor under pressure to fend off predators.

Why does my perspiration smell stale?

Why is your body odor suddenly so strong? Learn the top five causes of foul perspiration odors and what you can do to fix them.

It’s simple to blame your perspiration solely for a change in body odor (BO) that occurs suddenly. However, sweat has no smell on its own.

Actually, microorganisms in your perspiration breaking down proteins is what gives out the disagreeable odor. You may smell unpleasant if you have a lot of “bad bacteria” dwelling on your skin.

So, the actual query is: Why are there suddenly massive colonies of harmful bacteria feasting on your sweat? There are other sly reasons for poor BO to take into account, despite the possibility that you are just sweating more as a result of exercise.

These three details about your perspiration are important to know:

  • Eating spicy meals and red meat might negatively affect how you smell.
  • Underlying medical issues can also be the reason for sudden changes in body odor.
  • The amount of “bad bacteria” in your armpit microbiome may grow if you stop using antiperspirants.

What could be the source of your bad BO? We’ll go through a few cunning causes of sweaty odors below.

How can sour sweat odor be eliminated?

Six Guidelines to Reduce Body Odor

  • Keep Yourself Spotless.
  • Utilize bacterial soap.
  • Well, towel off.
  • Use antiperspirants with “Industrial Strength.”
  • Clean Up Your Clothes.
  • Reduce or Eliminate Certain Foods or Drinks.

Can a renal condition lead to body odor?

Body odor is mostly caused by bacteria in combination with sweat, but not all sweat is created equal. People have two different types of sweat glands, which is why this is.

Eccrine glands

The palms of the hands and feet, the forehead, the cheeks, and the armpits all have a significant number of eccrine glands. They sweat, but it’s watery, and it doesn’t smell.

Apocrine glands

Apocrine glands are found in the genitalia and under the armpits of people. These glands secrete a viscous, thick substance that, when combined with microorganisms on the skin, can have a strong odor.

There are a number of potential reasons why body odor changes, including:


When someone works out, their body produces perspiration to help them keep a constant body temperature. This sweat can smell when it congeals with skin-surface germs and dries. The most common abbreviation for this bodily odor is BO.

Other causes of unusually heavy sweating include:

  • being obese or overweight
  • being in a warm setting
  • stress


Some foods may cause a difference in how you smell. For instance, the high fiber content of cruciferous vegetables like cabbage, cauliflower, and kale can give one’s gas an egg-like odor. Urine that has eaten asparagus frequently smells.

A person’s body odor might also change as a result of eating foods like curry, cumin, garlic, and onions. The body may produce body odor that differs from a person’s natural aroma as a result of the sulfur-like compounds that are released by these foods that react with sweat on the skin.

Drug side effects

Some medicines can make you sweat more than usual, which in some people can modify how you smell. The following are a few of the most typical instances of these drugs:

  • desipramine (Norpramin)
  • nortriptyline (Pamelor)
  • pilocarpine (Isopto Carpine)
  • protriptyline (Vivactil)
  • Zinc dietary supplements like Zincate, Galzin, Orazinc, or Cold-Eeze

The potential negative effects of the drug should be disclosed on the product box. The fact that not everyone who takes the medicine may experience adverse effects must be noted.


The eccrine glands in people with hyperhidrosis cause excessive sweating. Body odor is not often caused by eccrine sweat, although it can be if it mixes with apocrine sweat.

Plantar hyperhidrosis results in excessive foot sweating, which makes for stinky feet.

The excessive sweating may be primary hyperhidrosis, which means it occurs on its own, or it may be a sign of another medical issue. Additionally, several drug adverse effects may cause it.


It is an uncommon hereditary disorder called trimethylaminuria. Trimethylamine is a chemical substance that those with it are unable to degrade. The substance leaves the body through sweat, urine, and breath, emitting a rotten-egg, fish, or garbage-like odor.


Some people’s body odor could be a clue they have diabetes. It takes place when the blood’s glucose level is too high. Diabetes is a chronic disorder for which there is no known cure, but it can be controlled.

Additional signs include:

  • having more frequent urination
  • extreme thirst
  • severe hunger
  • severe fatigue
  • hazy vision
  • delayed wound healing

Kidney disease

When the kidneys are damaged and unable to filter the blood as they should, it can sometimes be possible to detect kidney illness by the smell of the person. Additional signs include:

Why do my sheets have a bad smell?

Daily use makes linens dirty. Unpleasant odors, sometimes resembling a sour stink, are produced by germs, bacteria, mildew, and stains. Fabric fresheners, candles, and incense don’t actually cure the smell problem; they just mask it.

Periodontal diseases

Gingivitis and periodontitis are two examples of periodontal disorders, often known as gum diseases. The tissues and bone that support your teeth are attacked by microorganisms in these inflammatory illnesses. Inflammation can alter metabolism and raise blood sugar levels, which makes diabetes worse.

Although periodontal disorders can develop as a result of diabetes, they can also make the condition worse for those who already have it.

One third of persons with diabetes also have periodontal disorders, according to a 2013 study. Periodontal disease is also connected to heart disease and stroke, both of which can be consequences of diabetes.

Diabetes can harm blood vessels, decreasing blood flow to several parts of the body, including the gums. Your gums and teeth could become weakened and more prone to infection if they aren’t getting enough blood.

Diabetes may also cause your mouth’s glucose levels to rise, encouraging the growth of bacteria, an infection, and foul breath. High blood sugar makes it difficult for the body to fight infection, which makes it more difficult for the gums to heal.

If periodontal disease strikes a person with diabetes, it may be more severe and require more time to heal.

A typical indicator of periodontal disease is bad breath. Other indications include:

  • red or sensitive gums
  • bleeding gums
  • vulnerable teeth
  • receding gums


When your body is unable to produce insulin, your cells are deprived of the glucose they require as sustenance. Your body switches to burning fat as a balancing mechanism. Ketones, which accumulate in your blood and urine when you burn fat instead of sugar, are produced.

Although not to the same extent as in diabetic ketoacidosis, ketones can also be created during fasting or following a high-protein, low-carbohydrate diet.

Bad breath is frequently a result of high ketone levels. Your breath may smell like nail paint because one of the ketones, acetone, is a substance used in nail polish.

Your likelihood of developing diabetic ketoacidosis (DKA) increases when ketones elevate to hazardous levels. DKA symptoms include:

  • You have a fruity and sweet odor.
  • more than usual urination frequency
  • stomach aches, nauseousness, or vomiting
  • high amounts of blood sugar
  • respiratory issues or lack of breath
  • confusion

DKA is a risky illness that primarily affects persons with type 1 diabetes whose blood sugar levels are out of control. If you experience any of these signs, get medical attention right once.