[Spontaneous rupture of the imperforate hymen in two newborns].

Imperforate hymen is the most frequent congenital malformation of the female genital tract and usually remains asymptomatic until puberty. The diagnosis of this malformation is rarely made at birth and surgical treatment is often by hymenotomy. However, spontaneous rupture of the imperforate hymen is possible but is very rare. We report two cases of imperforate hymen revealed by mucocolpos at birth. Ultrasound examination does not objectify hydrocolpos or hydrometrocolpos. Spontaneous rupture of the imperforate hymen was observed respectively in the 4th and 7th day of life with a satisfactory result at 1 month of age. Screening for the imperforate hymen must be systematic at birth to offer early hymenotomy if the spontaneous rupture is not adequate and prevent serious complications of the disease at puberty.