Dampness in the perineum may be caused by sweating, leucorrhea or vaginitis. 1. Sweating: If the weather is hot, if you are overdressed or if you exercise too much, it may cause the pores in the perineum to secrete more sweat, resulting in a moist pubic area. 2. Increased leukorrhea: During ovulation, pregnancy, or before menstruation, women usually experience a physiological increase in leukorrhea, which may lead to vaginal dampness. 3. Vaginitis: If a woman suffers from vaginitis, there may be an abnormal increase in secretions, which may stimulate the local skin and mucous membranes of the vulva, resulting in vaginal wetness, accompanied by vulvar itching and discomfort. If the situation of vaginal moisture, should consult a doctor in time to clarify the cause, such as pathologic causes need to be standardized treatment in a timely manner.