What causes the labia to turn black

Why are the labia turning black? There are many interesting speculations about the darkening of the labia, such as:

1. The darkening of a woman’s labia is caused by the friction of walking;

2. Because some lotions are not good, it seems that many lotions are corrosive.

These statements are very funny, but they are not scientific. In fact, the following causes of darkening of female labia are usually not excluded:

　1. Genetic reasons;

2. Caused by too frequent sex;

3. Normal pigmentation means that having sex will cause the labia to darken, including the vaginal opening and the inner and outer labia. During sex, the labia will be repeatedly stimulated by external friction for a long time, causing local pigmentation to increase, and its color will deepen over time. This is a normal physiological phenomenon. At the same time, melanin from sexual stimulation hormones will also turn the labia into a dark halo. 》》》Little-known phenomena of women’s menstrual periods