The vagina is a female genital organ located between the bladder and rectum. It extends from the vulva to the cervix and consists of several layers of tissue including mucous membrane, connective tissue, blood vessels, nerves, and smooth muscles. During sexual stimulation, blood flow increases within the vagina, causing it to become moist and swollen, resulting in lubrication. As orgasm approaches, the vagina undergoes rhythmic contractions that are visible externally and may be felt internally. These contractions vary in intensity depending on the individual but typically occur at regular intervals lasting for several seconds each. The contractions can be stronger and longer in some women than others. There is still much debate about the purpose of these contractions, although it is thought they could serve to push semen into the uterus or increase pleasure during sex. Some research suggests that the contractions may also aid in the expulsion of unwanted sperm after fertilization. The vaginal walls contain smooth muscle which contracts rapidly during orgasm due to the release of oxytocin and other hormones. Oxytocin plays a key role in female arousal and orgasm by increasing blood flow to the vagina and clitoris. The contractions can be powerful enough to cause squirting fluid to be released from the vagina, known as "squirting". Squirting is not common among all women and may require specific conditions such as high-quality stimulation and relaxation.
This article explains the anatomy and function of the vagina during orgasm. It discusses how the vagina becomes moistened with increased blood flow during sexual arousal and describes the rhythmic contractions that occur during orgasm. This article provides information on the chemical processes involved in orgasmic contractions and explains why some women experience more intense contractions than others. Finally, this article explores the controversial topic of squirting and its potential causes. Overall, understanding the vagina's response to sexual stimulation and orgasm is important for women's health and wellbeing.