Female pubic hair has the following roles: 1, play a protective role, because the pubic hair can protect the female vulva, vagina, labia majora, labia minora, etc., to prevent bacterial viruses or other foreign objects into the female vagina, damage to the labia majora and minora, and ventilation, heat dissipation and thermal insulation, to protect the perineal skin; 2, immune function, because the female pubic hair has a certain swing function, through the left and right swing of the pubic hair can be swept away from adherence in the Vagina or labia majora, labia minora, vulva and other parts of the bacteria, dust, to prevent sweat or other liquids delayed entry into the vagina, to prevent women from suffering from gynecological inflammation; 3, has the role of excretion, such as sweat, so that the body’s circulatory system or the immune system play a certain role in assisting.