Why are private parts dark?

Disease analysis: There are many reasons for the blackening of women's private parts, but sexual life is indeed an important factor. After sexual stimulation, local capillaries are stretched and thinned, hemoglobin is deposited and aged, and there is no time for blood oxygen exchange. Melanin is gradually deposited in the heart, which leads to the darkening of areola and labia. In fact, the color of women's private parts is influenced by their own melanin precipitation and is also related to female hormones. In other words, the female genitals are not developed since childhood, so the entire external genitals are covered by the labia majora, and the skin of the vulva is the same color as the skin of other parts. Until the development of women, under the action of hormones, women's perineum will grow hair, and labia minora will be more prominent than labia majora. At this time, the color of vulva will begin to deepen. Suggestion: For women who have been married for many years, the pudendal color turns black because sexual life increases hormones in the body, which makes the pudendal color darker. The longer the sex life, the darker the color, but this is normal.