Although the size of the vagina in women vary, but the length ranging from 6 to 7.5 cm (2.5 to 3 inches) covering the anterior wall, and 9 cm (3.5 inches) long to cover the posterior wall. At the moment of sexual arousal, vaginal length and width will increase. Vaginal elasticity can help the process of sexual intercourse, and besides it helps during the birth process.
