When menstruation comes after perianal abscess surgery, patients should pay attention to aspects such as trauma protection, stopping the use of antiemetic drugs and stopping sitz baths. 1. Wound protection: patients who have menstruation after surgery should pay attention to the use of clean gauze bandage on the abscess wound, and then use sanitary napkins to avoid contamination of the wound by menstrual blood, resulting in cross-infection. 2. Discontinue the use of hemostatic drugs: If patients still use hemostatic drugs such as thrombin in the early postoperative period, it is recommended to stop using the drugs to avoid affecting normal menstruation. 3. Stop taking sitz baths: It is recommended that patients use warm water to clean the perianal area after defecation to avoid infections caused by sitz baths. It should be noted that during menstruation, the wound may bleed and worsen, patients should not be too nervous, if there are symptoms of discomfort, timely communication with the doctor to find the appropriate treatment.