Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Font Size

Penis FAQ

You may not want to talk about it in public. But a lot of guys have questions about their penis.

Here are answers to some of the most common questions guys have.

Recommended Related to Teen Boys

Teen Boys and Abstinence

It may seem like everyone at school is doing it -- or talking about doing it. Add to it the increasing talk of sex on TV and in movies and you probably feel like the only person waiting to have sex. You are not alone. More than one half of high school teens have not had sex, according to recent surveys. In fact, many teens are choosing abstinence (not having sexual intercourse) until they are older and in long-term, committed relationships. Deciding to have sex is a very personal decision. It is...

Read the Teen Boys and Abstinence article > >

When does the penis grow?

Your penis grows longer and wider during puberty. That's the time major changes occur in the body that make you look more like a man and less like a child. Most guys start puberty between ages 10 and 14.

But, puberty happens at different times for everyone. You may have a penis that's grown to its full size as early as age 13 or as late as age 18.

When does a penis stop growing?

Your penis stops growing when you finish puberty. Exactly when that happens, though, varies from person to person. Everyone develops at a different pace. You may take longer than your friends or less time than them to finish puberty. But by 16, your body and its parts should be close to your adult size.

Is my penis size normal?

There is no such thing as a "normal" penis size. The size of your penis depends on your genes, just like the size of your hands, feet, and eye color. Keep in mind, penis size has nothing to do with manliness or sexual ability.

Can I change my penis size?

No. You can't change the size of your penis. Despite what you may hear, no exercises, vitamins, or diets can change the size of your penis or make it grow faster.

What is a morning erection?

An erection is when your penis fills with blood and becomes hard. A morning erection is an erection you wake up with in the morning.

Morning erections are very common. In fact, most guys have about three to five erections each night while they sleep. They just don't know it.

What is a wet dream?

A wet dream is when you ejaculate (release semen from your penis) in your sleep and wake up wet. Wet dreams often occur from having sexual dreams. Sometimes, though, they just happen. Wet dreams are a normal part of puberty. Usually, they stop as you get older.

1 | 2 | 3

Today on WebMD

Teen BMI Calculator
Young couple holding hands
teen boy doing pushups
teens flirting
burger and fries
Young man shaving, close-up
Boy meditating in gym class
Teen boy eating huge slice of pizza
boy looking at wall
teen boy looking at apple
boy popping pimple on face