Jordan
A 21-year-old male asked:

What is the average penis length for a 13 year old boy in the first stage of puberty?

2 doctor answers2 doctors weighed in
Dr. Quang Huynh
Family Medicine 9 years experience
According to a study done on 6200 healthy Bulgarian males aged 1-19, the average STRETCHED flaccid penis length for a 13 year old boy was determined to be about 2.8 inches +/- 0.6 inch standard deviation. Keep in mind that there is major individual variation.
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Dr. Birendra Tandan
Urology 36 years experience
It can vary. generally 4-5 cm- flaccid
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Last updated Jul 6, 2023

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