Wet underwear may be physiological or pathological factors, such as cervicitis, vaginitis, reproductive system tumors and other causes. 1. Physiological factors: the relatively high level of estrogen in women’s bodies during ovulation can cause an increase in the secretion of leukorrhea, which is manifested as excessive watery or egg-white-like leukorrhea on the underwear, and the phenomenon of wetness. 2. Pathological factors (1) Cervicitis: mostly caused by vaginitis with upward infection, especially in patients who have had many uterine operations in the past, the endocervical lining of the uterus is more prone to infection, which can cause moist underwear, accompanied by odor, abdominal pain and other symptoms of leukorrhea. (2) Vaginitis: It is mostly related to frequent sexual intercourse and lack of attention to personal hygiene, which can be manifested as increased secretion and odor. Excessive secretion can cause dampness in the underwear, accompanied by abdominal pain, itching and other symptoms. (3) Tumor of reproductive system: such as uterine tumor may press the cervical canal, which may cause increased secretion of cervical glands, leading to the phenomenon of moist panties. If the underpants are often wet outside the ovulation period, it is recommended to consult the doctor in time to clarify the cause and treat the cause with specific conditions to avoid delaying the condition. At the same time, it is recommended that patients clean the vulva in time and change underwear frequently to avoid adverse effects.