Smell something foul when sleeping? Body odor at night rarely tops the list of serious health woes, but it can be embarrassing and disconcerting. Sour body odor when sleeping usually isn't a cause for concern, but the sweating could be a sign of benign hyperhidrosis or a more serious ailment.
When a certain part of your body smells sour, the most common cause is bacteria. When bacteria is present on your skin and it mixes with sweat, it breaks down the acid in your sweat, resulting in a vinegar-like smell.
The smell that arises is due to the bacteria that live harmlessly on everyone's body. When the bacteria mix with sweat released from your sweat glands, it can create an unpleasant odor. If you are regularly experiencing night sweats with a bad odor, it may be worth investigating.
Sweat is mainly water and sodium chloride, but also contains small amounts of potassium, calcium, ammonia, urea, lactate, and ethanol. When sweat mixes with bacteria on the skin, it can produce a smell, which may smell like vinegar.
Corynebacteria. A bacterial skin infection caused by corynebacteria can cause sweat to smell like vinegar or other strong scents.
Perspiration and bacteria
Bacteria generally cause sour-smelling sweat. Everyone has bacteria on their skin, and when the bacteria start to break down the sweat, it creates an odor. If you run hot at night, causing sweating, try reducing your room temperature or wearing cooler clothing.
If your sweat smells like vinegar, it could be as simple as something you ate. Foods are loaded with up to hundreds of volatile organic compounds that, in addition to contributing to sharp and pungent flavor profiles (think garlic, onions, cheese, etc.)
The appocrine glands are larger and are found primarily in the underarm area. This stress sweat contains a lot of the nutrients that bacteria feed off of, and it's the bacteria feeding off of sweat that produces most of the resulting odor. That means that stress-induced sweat smells worse than sweat from other causes.
A bedroom can smell in the morning as a result of body odour, dust, moisture in the room, dirty bedding and a messy room. Poor air circulation at night makes unpleasant odours linger until morning. These smells can be avoided by regularly cleaning the bedroom and making sure to air it out every day.
Body odor at night rarely tops the list of serious health woes, but it can be embarrassing and disconcerting. Sour body odor when sleeping usually isn't a cause for concern, but the sweating could be a sign of benign hyperhidrosis or a more serious ailment.
Awful pillow smells
If your nose picks out an awful smell when you put your head down to sleep, time might be up to get a new pillow. Unpleasant smells are a sign that bacteria and body odors have seeped right through the pillow's surface.
Hormone imbalances and body odor often go together. Dips in estrogen can trigger hot flashes and night sweats, meaning you simply sweat more, which in turn can result in more odor.
It's very common for vaginas to produce a tangy or sour aroma. Some compare it to the smell of fermented foods. In fact, yogurt, sourdough bread, and even some sour beer contain the same type of good bacteria that dominate most healthy vaginas: Lactobacilli.
Sinusitis causes symptoms such as sinus inflammation and nasal congestion, which can interfere with a person's sense of smell. The condition can also cause bad breath and a discolored, bad-smelling discharge in the nose and back of the throat, all of which may create a bad smell in the nose.
Tangy, fermented, or sour.
These are perfectly healthy adjectives to describe the vaginal odor created by your normal bacterial flora. Good bacteria help keep your vagina healthy by producing lactic acid, hydrogen peroxide, and other substances to keep harmful bacteria at bay.
As your body filters these things out (especially if you're digesting around 2 a.m.), the smell could seep through your skin, leaving you feeling less than fresh in the morning. Stick to fresh vegetables and lots of water (especially if it's a late dinner) to combat body odor during the night.
Most kid smells are caused by the buildup of bacteria and sweat. To keep those smells from compounding on themselves, you need to air out your child's bedroom regularly. Opening their bedroom door will help, but it will also drag those bad smells into the rest of your home.
But your apocrine glands, usually only found in your armpit area, are activated when you're under psychological stress, explains Preti. This sweat produces a strong, sometimes even sulfurous odor when you're anxious or scared.
Times of stress can cause you to sweat more and that sweat smells different because of the way it interacts with the bacteria on your skin.
Phantom Smells, such as odd, strong, acrid, metallic, blood-like, sour, ammonia-like, acidy, and repugnant smells, to name a few, are common anxiety disorder symptoms. Many anxious people report having phantom and odd smells as an anxiety symptom.
Sour underarms are caused by sweat in contact with bacteria on the skin. This condition often occurs in people with hyperhidrosis, mainly in the areas of the hands, feet, and armpits. There are two main types of sweat glands, eccrine and apocrine.
When the bacteria break down the sweat they form products called thioalcohols, which have scents comparable to sulfur, onions or meat. "They're very very pungent," says Bawdon.
If you have diabetes, a change in body odor could be a sign of diabetes-related ketoacidosis. High ketone levels cause your blood to become acidic and your body odor to be fruity. In the case of liver or kidney disease, your odor may give off a bleach-like smell due to toxin buildup in your body.
Dairy. Body odor develops when lipids secreted in your sweat are digested by bacteria on your skin, which release odorous gasses as a byproduct — lipids that comes from digesting milk, yogurt, and other dairy products.