A micropenis (mi·cro·pe·nis) is a penis that is smaller than the average size penis.
Overview
What does micropenis mean?
A micropenis occurs when a baby boy is born with a penis that is smaller than average. The normal length of a newborn boy’s penis is 2.8 to 4.2 centimeters (1.1 to 1.6 inches).
A baby with a penis that is less than 1.9 centimeters (0.75 inches) long is said to have a micropenis.
This condition generally affects the male throughout his life, and can cause problems with sexual function.
Signs and Symptoms
What are the signs and symptoms of a micropenis?
Signs and symptoms include:
Smaller than average size penis (0.75 inches or smaller in a newborn, or 2.8 inches or smaller in an adult male)
Problems with sexual function
Causes
What are the causes of micropenis?
Micropenis may be caused by hormone defects or deficiencies, or genetics.
