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What Are the Causes of Body Odor in Women?

author image Kristin Davis
Kristin Davis has been writing since 2004, specializing in the health and fitness fields. She has written for online and print publications including Fitness Monthly and Creative Circle. Davis has certification through the International Fitness Professionals Association as a personal trainer.
What Are the Causes of Body Odor in Women?
Foul body odor can be embarrassing. Photo Credit: BananaStock/BananaStock/Getty Images

Foul body odor is an embarrassing condition that plagues some women. Although the odor tends to be harmless, it can be an indication of an underlying health condition. That's why it is important to know why the foul body odor occurs. Having this information will help determine whether the cause is normal or potentially harmful, as well as knowing how to eliminate it. Your body odor not only mirrors the things that you put into your body, but it may also be an indication of what is happening inside your body.

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As bacteria work to break down sweat, a foul odor can emerge.
As bacteria work to break down sweat, a foul odor can emerge. Photo Credit: Maridav/iStock/Getty Images

When you are spending time in an environment that is hot or you are performing physical activities, it is completely natural and healthy to sweat, according to the CNN Health website. When your internal body temperature rises, the apocrine glands in the groin and armpit areas are notified by your autonomic nervous system. The glands are instructed to emit a fatty sweat into the gland's tubule. Once the tubule wall begins to tighten, the sweat makes it way to your skin's surface where it is broken down by bacteria. As the bacteria are working, the decomposition often leads to foul body odor. This odor can be eliminated by showering with soap. Use a washcloth in areas where friction may be contributing to the problem. Use a deodorant soap if you sweat heavily.


Eat fewer soybeans to lessen the effects of trimethylaminuria.
Eat fewer soybeans to lessen the effects of trimethylaminuria. Photo Credit: Willard/iStock/Getty Images

Trimethylaminuria is a genetic condition that affects the body's ability to break down trimethylamine, a compound that is made by your body while digesting food, according to Genetics Home Reference. Having excess amounts of trimethylamine in your body causes your breath, urine and sweat to emit a fishy odor. Genetic testing can be performed by your physician. If you are found to have the condition, your doctor may prescribe low dose antibiotics, which help control the production of the bacteria. To lessen the effects of the condition, avoid eating foods that contain choline, such as soybeans and egg yolks.


A yeast infection can also cause foul smelling body odor.
A yeast infection can also cause foul smelling body odor. Photo Credit: Hoby Finn/Photodisc/Getty Images

An infection known as bacterial vaginosis, or a yeast infection, causes body odor in women due to the overgrowth of bacteria releasing a foul-smelling liquid from the vagina, according to It is quite common and can occur for a variety of reasons, including when the normal, protective bacteria are eradicated by antibiotics or other medical treatments or because of dietary imbalances. The liquid coming from the vagina has the appearance of curdled milk or cottage cheese. It can be gray or a milky white liquid. If the condition persists, see a doctor for antifungal medication. Adding yogurt with live cultures or probiotic supplements to the diet can also help treat and prevent vaginal yeast infections. To reduce odor associated with the infection, bathe on a daily basis and wear clean, dry underwear each day.

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