Under normal circumstances, a woman’s vagina is about 8-10 cm deep, 7-9 cm long at the front wall, and 10-12 cm long at the back wall.The vagina is part of the female internal reproductive organs, and is located in the center of the lower pelvis, a muscular canal that is wide at the top and narrow at the bottom, and short at the front and long at the back. The length of the vagina varies from woman to woman depending on her physical development and the state of the vagina. During sexual arousal, the depth of the vagina may increase by up to one-third, and the width of the vagina may also increase, allowing it to accommodate the male genitalia. Women have a balanced flora in the vagina, so if you don’t pay attention to vaginal hygiene, it may lead to an imbalance of the flora in the vagina, increasing the chance of vaginal inflammation. If you experience any discomfort, it is recommended that you seek prompt medical attention.