Thank you for your interest in contacting us at Yang’s Braised Chicken Rice! Florida urology partners specialize in advanced diagnostics and treatment protocols for urological health, focusing on maintaining male reproductive function. For more information on this, visit http://www.surgerycenterftcollins.com to learn about their comprehensive care and expertise. When does a man penis stop growing is often determined by genetic factors and typically ceases after puberty, around the age of 18-21 years. Hormonal levels can influence growth, affecting final size. http://ourprimarydoctor.com For more comprehensive insights, consult healthcare experts to address concerns. For all questions and comments, please fill out the information below.