Sexual bleeding refers to bleeding after sexual intercourse, which may be caused by cervical lesions, vaginal inflammation, menstrual flow and other reasons. 1. Cervical lesions: Cervical lesions include cervical benign lesions and cervical malignant lesions, cervical benign lesions such as cervical polyps, cervical fibroids may cause bleeding during sex; while cervical malignant lesions such as cervical pre-cancerous lesions and cervical cancer may cause bleeding during sex. 2. Vaginal inflammation: vaginal inflammation, such as vaginal mucosal polyps, inflammation of vaginal mucosa, etc., will lead to a lot of bleeding spots in the vaginal mucosa, and the friction after intercourse will lead to bleeding phenomenon. 3. Menstruation: If the time of sexual intercourse coincides with the time of menstruation, bleeding after sexual intercourse will also occur. If the patient has bleeding after sexual intercourse, it is recommended to consult a doctor in time, under the guidance of the doctor, improve the relevant examination, to clarify the cause of the disease, symptomatic treatment.