Micropenis

A micropenis (mi·​cro·​pe·​nis) is a penis that is smaller than the average size penis.

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Dallas
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Plano
Specialty Center 1

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Specialty Center 2

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Park Cities

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Prosper

469-303-5000
Fax: 214-867-9511

South Rockwall

214-867-7400
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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.

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

What are the causes of micropenis?

Micropenis may be caused by hormone defects or deficiencies, or genetics.

Micropenis doctors and providers