The genetic law of underarm odor

When walking on the street, if you pass by a person with body odor, you will subconsciously look at him/her twice or mutter a few words. Bromhidrosis is a highly hereditary disease. Although it will not affect life safety, the unpleasant odor will attract excessive attention from people around you and will have a certain impact on the psychology. This article introduces the genetic laws of axillary odor. People who have this disease can take a look at it.

Armpit odor is hereditary

The cause of axillary odor is the abnormally active secretion of the apocrine sweat glands in the armpits, which secrete a large amount of organic matter that is decomposed by bacteria to produce an unpleasant odor. Everyone has apocrine sweat glands, so why do some people have body odor while others don't? After years of research, this question has been basically clarified. The problem lies in genes. Body odor is essentially a genetic disease.

We know that the human body has a total of 23 pairs of chromosomes. The problem lies in a gene on the long arm of the 16th pair of chromosomes. A small mutation of this gene causes the secretion function of the human sweat glands to be abnormally strong, secreting some large molecular organic substances that ordinary people cannot secrete. When the bacteria on the body's surface obtain these nutritious macromolecules, they reproduce and decompose, producing a lot of substances with a special irritating odor, which is called axillary odor. The genetic characteristic of this gene is autosomal dominant inheritance. In layman's terms, if one parent has axillary odor, there is a 50% chance that it will be passed on to the children, regardless of gender. In very rare cases, some people have no genetic history and it may be caused by gene mutation.

Genetic law of underarm odor

1. If the father does not have axillary odor, but the mother has axillary odor and is homozygous, the prevalence of male and female offspring is 100% each;

2. If the father does not have axillary odor, but the mother has axillary odor and is a heterozygote, the incidence rate of male and female offspring is 50% each;

3. If the father has axillary odor and the mother is normal, the prevalence of female offspring is 100% and that of male offspring is 0%;

4. If both parents have axillary odor and the mother is homozygous, then the probability of the offspring, regardless of gender, suffering from the disease is 100%;

5. If both parents have axillary odor and the mother is a heterozygous, the disease rate for female offspring is 100% and for males is 50%.

The doctor said: The laws of body odor inheritance are only judged based on the clinical family history of body odor. The above laws are general genetic laws. Depending on the individual's physical constitution, there will be other special circumstances that are unavoidable.

Ways to prevent armpit odor in children:

1. Pay attention to local hygiene and keep it clean and dry.

2. Provide more nutritious, easily digestible, non-greasy and non-irritating food

3. Pay attention to cultivating their self-confidence and eliminating nervousness.

Warm reminder: If you find that your child has severe body odor, you need to take scientific treatment methods. And it must be treated in time. Although body odor does not hurt or itch, it should not affect the child's normal life and study, and will cause effective psychological trauma to the child, which is difficult to cure. I sincerely wish that the child can grow up healthy and happy.