Why don't women have hair under their armpits

Armpit hair is the hair that grows under the armpits and can protect the skin under our armpits. When people are children, their bodies are very smooth. As they grow older, they begin to develop and show secondary sexual characteristics. Armpit hair in women is one of these characteristics. However, some female friends will find that they are different from others and do not have armpit hair. What is going on? Let’s find out the specific reasons.

The role of armpit hair

Armpit hair can protect the body surface where it grows from invasion of foreign bacteria, dust, etc., and keep the "enemy" out of the skin.

When the human body moves, the arms move and the armpits always generate friction between the surrounding skin. If the friction lasts too long or is too heavy, it often rubs in the "middle", which relieves the force of skin friction and protects the armpit skin from being scratched. Therefore, the role of armpit hair cannot be denied. Many women often pluck or shave their hair for beauty, which is harmful to the body. Because the armpits are rich in lymph nodes, plucking or shaving armpit hair is likely to cause epidermal infection and pose hidden dangers. Therefore, the correct way is to use round-head scissors to trim, which is both beautiful and will not scratch the skin.

Why don't women have hair under their armpits?

The fact that women do not have armpit hair is mainly affected by two factors. The first is genetic factors. Maybe their parents also have less armpit hair. Secondly, it is also necessary to consider the disorder of male hormone levels in the body. Armpit hair exists in the human body, generally in both men and women. Hair growth is related to androgens in the human body, so some people mistakenly believe that androgens are not possessed by women. In fact, normal women also have a certain amount of androgen in their bodies. This means that women generally have armpit hair when they reach adulthood. Armpit hair is located under the armpits and is also one of the secondary sexual characteristics of women. Similar to pubic hair, it is the result of the adrenal glands starting to secrete androgens. Armpit hair appears 1-2 years later than pubic hair, and the average age reported abroad is 14-15 years old. Chinese women also start to develop armpit hair around the age of 14-15.

What should women do if they don't have hair under their armpits?

The absence of armpit hair in the follicle area may be related to the poor sensitivity of the local hair follicle tissue to male hormones. It is related to one's own physical constitution, not pathological, and does not require treatment. This issue has individual differences, just as some people never grow beards. Women who do not grow armpit hair can check whether their hormone levels are normal.