Pubic hair is the hair that grows on the pubic symphysis and the mons pubis of women. According to the anatomical structure, it grows in a triangular shape. The function of pubic hair is to keep the bacteria from invading the perineum, which is useful for keeping the perineum clean and hygienic, and is also a typical expression of female secondary sexual characteristics. The pubic area is not recommended for hair removal, because the perineum is very rich in blood vessels, and the perineum is closely connected to the urethra and anus. Hair removal in this area can easily cause several hazards: first, it can easily lead to bleeding and may also cause hematoma. Secondly, it increases the risk of infection and may induce folliculitis and vaginitis. Third, the vagina loses a natural barrier after pubic hair removal, which can also make it more susceptible to gynecological infections. In view of the important role of pubic hair, nowadays even a cesarean section will not shave off the perineum, so women should not easily perform pubic hair removal.