What causes armpit odor

Armpit odor is more common in daily life, mostly occurs in adolescence, no harm to the human body, not contagious, but armpit odor that unpleasant smell often brings greater trouble to our life, work and social interaction. Many people do not know what causes armpit odor, research points out that the onset of armpit odor and genetics, personal constitution and sweat gland structure and other factors related to.

Family genetic factors

Armpit odor is a hereditary disease, mostly occurs in adolescence, according to the survey, both parents have armpit odor 80% will be inherited to the next generation, if only one of the parents have armpit odor, then the chances of inheritance is 50%. Most patients with axillary odor have a family history of inheritance, however, this inheritance has nothing to do with gender, that is, the transmission of male to female is arbitrary, both men and women may inherit on.

Abnormal secretion of sweat glands in the armpits

There are two kinds of sweat glands in the human body: small sweat glands and large sweat glands, and top-secreting sweat glands. Top-secreting sweat glands are mainly located in the armpits, vulva, anus and other folds or long hairy areas, where there are more parasitic bacteria that can break down the organic components of sweat glands, resulting in the production of short-chain fatty acids and emitting a special odor, which we usually call armpit odor.

Physical differences

Young men and women have higher secretion of body surface glands than other people, especially oily skin people is more obvious, women than men's population distribution to 50% more, these glands are concentrated in the breast, armpit around the impact of a variety of environmental factors, often forming a moist warm environment, become a bacterial culture base, resulting in the body odor.

Bad hygiene habits

The production of armpit odor requires two conditions: body surface bacteria and sweat gland secretions. Our body has many unfavorable clean places, such as under the breasts, groin, armpits, etc. In summer, the weather is hot, these parts of the high temperature and humidity, sweating more bacteria will breed here, if you do not develop good hygiene habits, it will make the odor enhanced, leading to armpit odor.

Intrinsic gland odor

A researcher pointed out that after extracting the sebaceous glands of the axillary follicles of patients with axillary odor, the odor was found to be the same after several days of culture under sterile conditions, which means that the sebaceous glands of patients with axillary odor have odor themselves, putting aside the role of bacteria.

Abnormal distribution of bacteria

The distribution of bacteria in the sweat glands of patients with axillary odor is different from that of the normal population. Bacteria are distributed in the armpits of normal people, but more diphtheria-like bacilli are found in the armpits of patients with axillary odor,. The secretions of human sweat glands are not all sweat, but also some fatty acids and nitrogenous substances. Under the action of coagulase-negative bacteria and diphtheria-like bacteria, these fatty acids are decomposed into unsaturated fatty acids, which are inherently odorous, plus the nitrogenous substances mostly have an ammonia-like smell, which leads to the production of axillary odor.