Menstrual blood is found to have a relatively viscous, lacrimal, snot-like substance. Clinically, the secretion may be caused by the local glandular secretion of the cervix. The most common cause is chronic inflammation of the cervix, which causes the glands to secrete heavily, and a large amount of pus-like secretion adheres to the surface of the cervix. When menstruation occurs, the secretion is discharged outside the vagina with the menstrual blood, so a lacrimation and thick snot-like discharge is seen in the menstrual blood. It is recommended to go to the hospital for examination after menstruation to find inflammatory manifestations such as localized congestion and edema of the cervix. Anti-inflammatory treatment, such as inserting suppositories into the vagina and taking oral anti-uterine inflammatory tablets for half a month, can be effective.