Pain after sexual intercourse may be caused by physiological reasons, improper sexual lifestyle, local inflammation and other reasons. 1. Physiological reasons: If a woman is having sexual contact for the first time, pain is caused by vaginal friction. In addition, if the vagina is locally dry, there may also be pain caused by friction, which is generally a normal phenomenon. 2. Improper sex life: During sex, if the behavior is too intense or inappropriate posture, it is easy to lead to genital injury, resulting in pain after intercourse. 3. local inflammation: due to local inflammation of the vaginal mucosa, there will be congestion, edema and other inflammatory manifestations, men have prostatitis, urethritis, etc., in the coitus, the friction will cause local congestion aggravated, there will be pain. If you have pain after sexual intercourse, you should go to the hospital in time, and give appropriate treatment and treatment after clarifying the cause of the disease.