Not the first time coitus will still have pain and discomfort, the main consideration is the following reasons: First, consider the lack of sexual experience, due to the lack of foreplay coupled with nervousness, fear of pain, vaginal dryness, secretion, coitus stimulation will cause vaginal spasm, resulting in pain, it is recommended to do enough sexual foreplay before coitus, relaxation. Second, the vagina is too dry and astringent, due to the decrease of estrogen level, or vaginal inflammation leads to the decrease of vaginal secretion, the vagina is not lubricated enough during coitus and the pain and discomfort occurs, it is recommended to treat gynecological inflammation actively and regulate the endocrine. Third, consider cervical cancer and other cancerous lesions, which may cause pain during intercourse or even bleeding. It is recommended to have regular screening for cervical cancer, and timely detection and treatment if any problem occurs. Fourthly, it may be too rough during coitus, which may lead to tearing of the vaginal opening and pain.