There are many reasons for pain after intercourse, which may be caused by vaginal injury, vaginitis, folliculitis, vestibular cysts and other factors. 1. Vaginal injury: If a woman’s movements are too violent during intercourse, vaginal injury may occur, resulting in pain after intercourse. 2. Vaginitis: when female patients have trichomonas vaginitis, vulvovaginal pseudomycosis, bacterial vaginosis and other vaginal inflammation, various pathogens cause damage to the vaginal mucosa, and after coitus, pain in the lower part of the body may occur. 3. Folliculitis: if the female patient has folliculitis, during coitus, it will cause obvious friction to the lesion localization, after coitus, the symptoms of pain in the lower part of the body may also appear. 4. Vestibular cysts: If a woman has a vestibular cyst, intercourse can cause pressure on the lesion, which may cause pain in the lower part of the body. There may be other reasons for pain after intercourse, so it is recommended that you consult a doctor in time, complete the relevant examinations, identify the cause of the disease under the guidance of a professional doctor, and target treatment.