Pale green discharge after menstruation is mainly considered to be related to pathological factors such as cervicitis and trichomonas vaginitis. 1. Cervicitis: it is mostly related to the invasion of bacteria into the body caused by not paying attention to the hygiene of private parts, which can cause symptoms such as abdominal distension, abnormal vaginal bleeding, and increased vaginal discharge. Some patients have green discharge after menstruation. 2. Trichomonas vaginitis: patients can be due to long-term use of vaginal cleansing agents to wash the vagina, and destroy the micro-environment in the vagina, while trichomonas infection, can cause increased vaginal discharge, itching and other symptoms, while after menstruation can be accompanied by a green discharge, which can be purulent or thin, with a peculiar smell. It is recommended that women with the above symptoms go to the hospital in time, identify the cause and then actively treat it, and pay attention to local hygiene during treatment to avoid delaying the condition.