A four-year-old child's penis is the same as when he was born, what should be done?

Patient's question:

Patient is male, child is four years old, height at birth is ninety centimeters, penis is very short, same as when born. Previous treatment history and effectiveness: Has not been seen for any concerns. Desired assistance: How to be normal

Doctor's answer:

A small penis refers to a structurally normal penis that is smaller than the normal size range for infants. Under normal circumstances, the length of a male newborn's penis is between 2.8 and 4.2 centimeters, and its circumference is between 0.9 and 1.3 centimeters. To perform this measurement, the penis should be carefully stretched and the distance from the tip of the penis to its base measured. A penis shorter than 1.9 centimeters is generally considered to be a small penis. It is recommended to consult a pediatric urologist for a follow-up evaluation to confirm the diagnosis.