Research breaks down average penis size, what influences growth, and what studies say about size and sexual satisfaction.

It’s a case of erectile exaggeration. Plastic surgeon Dr. Anthony Youn, who famously ripped the medical community over breast implant myths last summer, is back with another body part bombshell — that ...

Yes, penis size is genetic, but it can still vary a lot within families. Genetics, hormones, and early nutrition can influence penis size. Race and masturbation do not affect penis size, despite ...

Penis enlargement is an important symptom of puberty. Learn the average penis size for boys ages 10 to 18, plus when you can ...

Penis shrinkage can occur and is often due to age, medication side effects, or lifestyle habits, such as smoking or weight gain. It rarely requires treatment, and habit changes can often help. Penis ...