Vaginal laxity is a common genital canal disorder in married women, especially after childbirth. The vaginal sphincter is relaxed due to repeated dilatation of the vagina caused by prolonged sexual intercourse and the extreme dilatation of the vagina caused by natural birth after pregnancy. Other patients have birth injuries that are not repaired at the time of delivery, or sutures that do not repair the muscles, resulting in misaligned healing tissue. Vaginal laxity is manifested by the laxity of the external vaginal segment. During sex, the friction between the vagina and the penis is weakened, resulting in reduced sexual pleasure for both men and women, and even difficulty in reaching orgasm. Physical examination: The external vaginal opening is mildly open. Sometimes, although the external vaginal opening can still be closed naturally, the ringing force of the vaginal sphincter is weakened during finger examination and can accommodate three or even four fingers.