Most common hymen rupture in a virgin
is ?
a) Anterior
b) Anterolateral
c) Posterolateral
d) Posterior
Correct Answer - C
Ans. is ‘c’ i.e., Posterolateral
Hymen rupture:
Congenital : anterior
Due to intercourse or foreign body: posterolateral ( 4/8 or 5/7 0’
clock) > posterior (6 0’ clock).
In virgin rupture (tears) of hymen due to sudden tretching occurs in
posterior half of membrane usually at the sides (i.e. posterolaterally)
in 4 or 8’O clock or 5 or 7’O clock position, or in the midline of hymen
(6’O clock position).
With first intercourse tears usually occur in posterior midline
because the hymen lies suspended across a potential space here,
whereas anteriorly periurethral tissues buttress the hymen.
More than 2 tears are unusual, Semilunar hymen often ruptures on
both sides. Annular hymen which nearly closes up the vaginal orifice
may suffer several hymenal lacerations indicate first sexual
intercourse.
One deep ‘V shaped cleft/tear at 6’ 0 clock or a number of clefts
usually in posterior haft hymen membrane indicate passage of any
object through hyme orifice which is larger its original opening.’
In prepubertal children posterior tear may involve fourchette
producing a deep U shaped defect. Fourchette is torn, fossa
navicularis disappear and posterior commissure may be ruptured.
The latter injury usually does not occur in consenting sexual
intercourse unless there is much disproportion between the male
and female parts