Hymen

Microperforate hymencarunculae myrtiformeshymenal openinghymensmaidenheddesslitvaginal cordvirgo intacta
The hymen is a thin piece of mucosal tissue that surrounds or partially covers the external vaginal opening.wikipedia
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Vagina

birth canalvaginalvaginal opening
The hymen is a thin piece of mucosal tissue that surrounds or partially covers the external vaginal opening. The genital tract develops during embryogenesis, from the third week of gestation to the second trimester, and the hymen is formed following the vagina.
The outer vaginal opening is normally partly covered by a membrane called the hymen.

Vulva

pudendal cleftexternal female genitaliacunnus
It forms part of the vulva, or external genitalia, and is similar in structure to the vagina.
The main structures of the vulva are: the mons pubis, the labia majora and labia minora, the external parts of the clitoris – the clitoral hood and the glans, the urinary meatus, the vaginal opening and hymen, and Bartholin's and Skene's vestibular glands.

Virginity test

two-finger testvirginity testinginspections for virginity
The state of the hymen is not a reliable indicator of virginity, although it continues to be considered so in certain cultures, and virginity testing may be done.
The test typically involves a check for the presence of an intact hymen, on the flawed assumption that it can only be torn as a result of sexual intercourse.

Hymenorrhaphy

hymenoplastyher hymen surgically restoredhymen reconstruction surgery
A torn hymen may be surgically restored in a procedure called hymenorrhaphy.
Hymenorrhaphy or hymen reconstruction surgery is the temporary surgical restoration of the hymen.

Sex organ

genitaliagenitalsgenital
It forms part of the vulva, or external genitalia, and is similar in structure to the vagina.

Virginity

virginmaidenvirgins
The state of the hymen is not a reliable indicator of virginity, although it continues to be considered so in certain cultures, and virginity testing may be done.
This has traditionally been tested by the presence of an intact hymen, which was verified by either a physical examination (usually by a physician, who provided a "certificate of virginity") or by a "proof of blood," which refers to vaginal bleeding that results from the tearing of the hymen after the first sanctioned sexual contact.

Development of the reproductive system

urogenital foldsmasculinization of male genitaliaFetal genital development
The genital tract develops during embryogenesis, from the third week of gestation to the second trimester, and the hymen is formed following the vagina.
The hymen represents the remains of the sinus tubercle.

Imperforate hymen

imperforate
An imperforate hymen occurs in 1-2 out of 1,000 infants.
An imperforate hymen is a congenital disorder where a hymen without an opening completely obstructs the vagina.

Artificial hymen

*Artificial hymen
An artificial hymen is a type of prosthetic created for the purpose of simulating an intact human hymen, usually to fake virginity.

Menstrual cup

menstrual cupsmenstrual-cup
The hymen can stretch or tear as a result of various behaviors, by tampon or menstrual cup use, pelvic examinations with a speculum, regular physical activity, sexual intercourse, insertion of multiple fingers or items into the vagina, and activities such as gymnastics (doing 'the splits'), or horseback riding.
Use of a menstrual cup could stretch or break the hymen.

Vulval vestibule

vestibuleHart's Linethe vestibule
In forensic medicine, it is recommended by health authorities that a physician who must swab near this area of a prepubescent girl avoid the hymen and swab the outer vulval vestibule instead.
The vaginal orifice is a median slit below and behind the opening of the urethra; its size varies inversely with that of the hymen.

Mucous membrane

mucosamucous membranesmucosal
The hymen is a thin piece of mucosal tissue that surrounds or partially covers the external vaginal opening.

Crescent

crescent mooncrescentsMoon
In children, a common appearance of the hymen is crescent-shaped, although many shapes are possible.

Puberty

pubescentpubescencesexual development
During puberty, estrogen causes the hymen to change in appearance and become very elastic.

Estrogen

oestrogenestrogensestrogenic
During puberty, estrogen causes the hymen to change in appearance and become very elastic.

Sexual intercourse

sexcopulationintercourse
The hymen may rip or tear the first time penetrative intercourse happens, which may cause temporary bleeding or slight discomfort, but sources differ on how common tearing and bleeding after first intercourse is.

Embryonic development

embryogenesisdevelopmentembryo development
The genital tract develops during embryogenesis, from the third week of gestation to the second trimester, and the hymen is formed following the vagina.

Gestation

gestatinggestategestational period
The genital tract develops during embryogenesis, from the third week of gestation to the second trimester, and the hymen is formed following the vagina.

Pregnancy

pregnantfirst trimesterpregnant women
The genital tract develops during embryogenesis, from the third week of gestation to the second trimester, and the hymen is formed following the vagina.

Urorectal septum

At week seven, the urorectal septum forms and separates the rectum from the urogenital sinus.

Rectum

rectalrectallyrectal ampulla
At week seven, the urorectal septum forms and separates the rectum from the urogenital sinus.

Urogenital sinus

sinovaginal bulbsSinus urogenitalisurogenital sinuses
At week seven, the urorectal septum forms and separates the rectum from the urogenital sinus.

Paramesonephric duct

Müllerian ductMüllerian ductsparamesonephric ducts
At week nine, the Müllerian ducts move downwards to reach the urogenital sinus, forming the uterovaginal canal and inserting into the urogenital sinus.

Hormone

hormoneshormonalprohormone
In newborn babies, still under the influence of the mother's hormones, the hymen is thick, pale pink, and redundant (folds in on itself and may protrude).

Infant

neonatalinfancynewborn
Past neonatal stage, the diameter of the hymenal opening (measured within the hymenal ring) widens by approximately 1 mm for each year of age.