Dear 242424,

Neither. Masturbation has no permanent effect on the size of a guy's penis.

If a guy masturbates and gets an erection, his penis will fill with blood, get hard, and grow in size — but when the penis becomes soft again, it will return to its regular size. Flaccid (soft) adult penises are usually between 3-1/4 and 4-1/4 inches long. The average length of an erect penis is five to seven inches long.

Hope this information helps!

Take care,

teenwire.com^® Editors

This column is for informational purposes only and is not intended to constitute medical advice, diagnosis, or treatment. If you have a medical problem, please call toll-free 1-800-230-PLAN for an appointment with the Planned Parenthood health center nearest you.