Penile Agenesis

Penile agenesis is an extremely rare birth defect that affects approximately one in every 20 million live births.

The condition affects male infants and occurs when the baby is born without a penis. Penile agenesis is also known as aphallia. Penile agenesis occurs during fetal development when the genital tubercle does not develop properly or at all.

Although the penis is missing, the testicles and scrotum are usually present. Most doctors agree that the best treatment for penile agenesis is to raise the child as a female and do a complete sex change with estrogen therapy.