The normal depth of a woman’s vagina is usually 5-7cm, the length of the posterior wall is about 10-12cm, and the length of the anterior wall is about 7-9cm. There is a lack of instruments or methods to measure vaginal length properly and accurately, but vaginal length is generally defined as the distance from the opening of the vagina to the cervix of the uterus. The vagina is wider at the upper end than at the lower end, with the posterior wall measuring about 10-12 cm and the anterior wall measuring about 7-9 cm, and the distance from the opening of the vagina to the cervix is usually about 5-7 cm. However, sexual stimulation and childbirth can change the length of the vagina. The musculature of the vagina has a stretching function and adjusts to the length of the penis during intercourse. A woman’s vagina also elongates after childbirth. If you are a patient who suspects an abnormality in your vaginal structure, it is recommended that you go to a regular hospital to be examined by a specialist.