Hymen atresia

The shape, size, and thickness of the hymen holes vary from person to person. Generally, the hymen hole is located in the center and has a half-moon shape with occasional septum. The hymen hole is divided into left and right halves. There are also membranes that are sieve-shaped and cover the vaginal opening, called sieve-shaped hymen. If the hymen fold develops excessively, showing a non-porous hymen, it is the hymen atresia, which is more common in the abnormal development of female reproductive organs.