Born-again virgin|Hymen|Artificial hymen|Imperforate hymen V Virginity|Virginity fraud| Virginity test

Hymen From Wikipedia, the free encyclopedia Jump to navigationJump to search This article is about the vaginal membrane. For the village, see Himen, Iran. For different uses, see Hymen (disambiguation). Hymen The hymen is a biological membrane that surrounds or partially covers the exterior vaginal opening. It varieties section of the vulva, or external genitalia, and is similar in shape to the vagina.[1][2] The hymen does no longer seem to have a specific physiological characteristic and has few, if any, nerve endings.[3]

• Hymenorrhaphy
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During puberty, estrogen reasons the hymen to change in appearance[3] and come to be very elastic.[4][5] Normal editions of the post-pubertal hymen range from thin and stretchy to thick and rather rigid; or it can also as an alternative be totally absent.[1] The hymen may additionally rip or tear the first time penetrative intercourse happens, which may additionally motive transient bleeding or moderate discomfort, but sources differ on how common tearing and bleeding after first intercourse is.[6][7][8] The hymen can stretch or tear as a result of a number different behaviors; for example, it may additionally be lacerated via disease, injury, clinical examination, masturbation or bodily exercise. For these reasons, the country of the hymen is no longer a dependable indicator of virginity,[2][9] though it continues to be regarded so in certain cultures, and virginity trying out may also be done. Minor injuries to the hymen may additionally heal[10] barring seen symptoms of preceding injury.

 A torn hymen may additionally be surgically restored in a method called hymenorrhaphy.Development and histology The genital tract develops for the duration of embryogenesis, from the 1/3 week of gestation to the 2nd trimester, and the hymen is fashioned following the vagina.

• Hymenotomy

At week nine, the Müllerian ducts pass downwards to attain the urogenital sinus, forming the uterovaginal canal and inserting into the urogenital sinus. At week twelve, the Müllerian ducts fuse to create a primitive uterovaginal canal referred to as unaleria. At month five, the vaginal canalization is complete and the fetal hymen is shaped from the proliferation of the sinovaginal bulbs (where Müllerian ducts meet the urogenital sinus), and commonly turns into perforate earlier than or rapidly after birth.[11] The hymen has no nerve innervation. In newborn babies, still beneath the affect of the mother's hormones, the hymen is thick, pale pink, and redundant (folds in on itself and may additionally protrude). For the first two to four years of life, the child produces hormones that proceed this effect.[12] Their hymenal opening tends to be annular (circumferential).[13] Past neonatal stage, the diameter of the hymenal opening (measured inside the hymenal ring) widens by using about 1 mm for every yr of age.[14] During puberty, estrogen causes the hymen turn out to be very elastic and fimbriated.