Micropenis in Children

What is a micropenis?

Micropenis is a penis that is smaller than normal. The expected length of a newborn male’s penis varies. A typical length of a newborn penis is 1.1 inches to 1.6 inches. A penis that is less than 0.75 inches from tip to base is a micropenis.

What causes a micropenis?

There are many possible causes for micropenis. It is less common for a micropenis to occur on its own. A micropenis usually occurs in combination with other disorders or conditions. The most common association is with hormone disorders or genetic conditions.

What are the signs and symptoms of a micropenis?

A micropenis causes no symptoms. The penis may look very small.

How is a micropenis diagnosed?

If micropenis is suspected, your healthcare provider will carefully measure the length of the penis from tip to base. You will be asked for a detailed health history of the child and his family. Often, labwork will be done to look for associated conditions.

How is a micropenis treated?

Your child’s treatment for a micropenis will depend on the cause, symptoms, and severity of the problem. The Division of Urology at Arkansas Children’s is experienced in diagnosing and treating micropenis and will work with you to determine a diagnosis and treatment plan for your child.