Why does sweat smell bad?

In the hot summer, people often sweat profusely. But some people may sweat a lot and have a very bad odor. Sweaty body can be very embarrassing in public places. It is easy to arouse other people's disgust, and then you will feel very embarrassed. This situation may be related to daily diet or genetic factors. It is necessary to make reasonable dietary adjustments in time, or apply ointment for treatment, but why does sweat smell bad?

Causes of Odoperidol

Large amounts of smelly sweat on human skin are often caused by abnormal sweat secretion from the apocrine sweat glands. It is mainly distributed in the armpits, areola, perineum, and external auditory canal, and is more common in women. The apocrine glands are affected by endocrine system, starting in childhood, gradually intensifying, and then gradually decreasing or disappearing in old age. Clinically, some patients have a family history, which may be related to genetics. There are many foreigners suffering from bromhidrosis and the condition is severe. The sweat of people who use some substances such as curry, onions, wine, and arsenic may have a special odor.

The sweat secreted by normal eccrine sweat glands is often odorless, but in the case of excessive sweating, the sweat is broken down by surface bacteria, releasing fatty acids and forming an odor. This is why topical antibiotics are effective. Rare bromhidrosis can occur when the mental or nervous system is damaged. Systemic bromhidrosis is often a physiological change, usually related to nerves, and only a few are pathological. Patients with bromhidrosis often have excessive sweating. Some statistics show that 86 out of 100 cases of bromhidrosis are accompanied by excessive sweating.

The main causes of underarm odor are as follows:

1. Heredity of axillary odor: Clinically, it has been found that axillary odor is hereditary. Generally, if one parent has it, the probability of their children inheriting it is 50%.

2. Apocrine bromhidrosis: Apocrine sweat glands only exist in the armpits, areola, umbilicus, anus, vulva and external auditory canal. Except for the armpits, the function of the glands in other parts is very weak and the sweat produced is very little. The sweat secreted by the apocrine sweat glands is initially sterile. Under the action of microorganisms, the organic matter in the sweat is decomposed to form short-chain fatty acids and ammonia with a peculiar odor, which leads to the occurrence of axillary odor.

3. Eccrine bromhidrosis: It often occurs on the palms, soles and intertriginous areas. The sweat is usually colorless and odorless. However, in the case of excessive sweating, the sweat is decomposed by parasitic bacteria on the skin surface, releasing fatty acids, which produce a special odor. Other substances such as garlic and arsenic can be excreted through the eccrine glands and cause axillary odor.

4. High mental stress often leads to underarm odor: Bromhidrosis can also occur when the mental or nervous system is damaged (such as paranoia, schizophrenia, etc.).