When the penis moves inside the vagina during intercourse, you will feel pain on the inside of the top, which is often caused by the reduced elasticity of the pelvic ligaments. The decrease in elasticity of the pelvic ligaments is mainly due to chronic inflammation in the pelvic cavity, resulting in adhesions in the pelvic tissues and more exudation, which will make the elasticity decrease, or due to endometriosis can also lead to adhesions in the pelvic tissues, resulting in pain during coitus. Therefore, it is recommended to do gynecological examination to know the activity of the uterus, to know whether there are cysts in the adnexal area, whether there are endometriosis, chocolate cysts, and to do ultrasound to exclude the possibility of pelvic tumors.