Originally Posted by Bosa

Length-boosting surgery for 'micro-penises' ... “Micro-penis” refers to any penis shorter than 7 centimetres when fully erect – approximately half of the average length (12.5 cm). Approximately one in every 200 men have a micro-penis, either because of a birth defect or because they have undergone cancer treatments.

Micropenis refers to an abnormally small penis. Micropenis is rare and hormonal or genetic issues are most often the cause.

What is micropenis?
Doctor speaking with his patient who is concerned about micropenis
Hormonal issues typically cause micropenis, which is a rare condition.
Doctors diagnose micropenis when a person's penis is 2.5 standard deviations below the average stretched length for their age and level of sexual development.

Research has estimated that the average penis size for an adult is 13.24 centimeters (cm) or 5.21 inches when stretched. For adults, doctors consider micropenis for a stretched penile length of less than 9.3 cm or 3.66 inches.

When a person has micropenis, their internal genitalia and testicles are usually normal

How common is micropenis?
Micropenis is a rare condition that may affect around 1.5 in 10,000 male newborns, or 0.015 percent of male newborns in the United States, according to estimates taken between 1997 and 2000.

The prevalence statistics of micropenis vary between studies. Micropenis and other birth abnormalities can be related to environmental factors, such as parental exposure to pesticides during pregnancy. As a result, this condition may be more common in specific populations.