Consider ovulatory leukorrhea, bacterial vaginosis, cervicitis, etc. on your underwear like snot. 1. ovulation leukorrhea: leukorrhea is a female vaginal secretion, women in the ovulation period, the body’s hormone level rises, the secretion will also increase, usually white paste, highly viscous, some performance like snot, this is a normal physiological phenomenon, usually no other discomfort without treatment. 2. Bacterial vaginosis: Bacterial vaginosis is a bacterial infection caused by imbalance of the normal flora in the vagina, due to inflammation stimulation, there will be an increase in the symptoms of secretion, mainly in the form of grayish-white thin secretion, accompanied by a fishy odor, and some will have vulvar itching and burning sensation. 3. Cervicitis: Cervicitis is an inflammation caused by pathogens invading the cervix and the mucous membrane of the cervical canal, and some patients may not have clinical symptoms, but some patients will have increased vaginal discharge, usually gray or yellowish discharge, and there will be pain during sexual intercourse and lumbar abdominal pain and other symptoms. The discharge like snot on the underwear may have other causes, it is recommended to go to the hospital for a detailed examination to determine the cause of the disease and then standardize the treatment.