Editing Vagina

[[file:Vaginal_Canal_Normal_vs._Menopause.png|thumb|left]] [[file:Blausen_0400_FemaleReproSystem_02b.png|thumb|left]] [[file:External_female_genitalia.jpg|thumb|right]] [[file:Sobo_1906_508.png|thumb|right]] [[file:Vagina_(mucosa).JPG|thumb|right]]
The '''vagina''' is a muscular and tubular part of the female [[genital tract]] that extends from the [[vulva]] to the [[cervix]]. It is an essential component of the female [[reproductive system]] and plays a crucial role in [[sexual intercourse]], [[menstruation]], and [[childbirth]].

=== Anatomy ===
The vagina is approximately 7.5 to 10 cm (3 to 4 inches) in length and is located between the [[bladder]] and the [[rectum]]. The vaginal walls are composed of three layers: the inner mucosal layer, the middle muscular layer, and the outer fibrous layer. The inner mucosal layer is lined with [[stratified squamous epithelium]], which provides protection and lubrication.

=== Functions ===
The vagina serves several important functions:
* Sexual intercourse: During sexual arousal, the vagina becomes lubricated to facilitate [[penetration]] and [[sexual intercourse]].
* Menstruation: The vagina allows for the passage of [[menstrual blood]] from the [[uterus]] to the outside of the body.
* Childbirth: During [[labor]], the vagina expands to allow for the passage of the [[baby]] from the uterus to the outside world.

=== Microbiota ===
The vaginal environment is home to a diverse community of [[microorganisms]], collectively known as the [[vaginal microbiota]]. The most predominant bacteria are from the genus [[Lactobacillus]], which help maintain an acidic pH and protect against infections.

=== Health and Diseases ===
Several conditions can affect the vagina, including:
* [[Vaginitis]]: Inflammation of the vagina, often caused by infections such as [[bacterial vaginosis]], [[yeast infection]], or [[trichomoniasis]].
* [[Vaginal atrophy]]: Thinning and drying of the vaginal walls, commonly occurring after [[menopause]].
* [[Vaginal cancer]]: A rare type of cancer that forms in the tissues of the vagina.

=== Cultural and Social Aspects ===
The vagina has significant cultural and social implications. It is often a subject of [[taboo]] and [[stigma]] in many societies, which can impact [[sexual health]] education and [[women's health]].

=== See Also ===
* [[Female reproductive system]]
* [[Vulva]]
* [[Cervix]]
* [[Menstruation]]
* [[Childbirth]]
* [[Sexual intercourse]]

[[Category:Female reproductive system]]
[[Category:Human anatomy]]
[[Category:Sexual health]]
[[Category:Gynecology]]

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