Erection
An erection means that your penis becomes stiff and stands erect. This happens when you are turned on. Sometimes it happens for no reason, especially during puberty.
How does it work?
Your penis consists largely of spongy tissue. When you are sexually aroused, this spongy tissue fills up with blood. This causes your penis to become hard, larger usually, and it stands erect. When you have a hard-on, your foreskin retracts, and you can see your glans. Men who are circumcised can see their glans all the time, even when their penis is limp.
Spontaneous erection
Sometimes you can get an erection unexpectedly, it’s all part of puberty. It’s called a ‘spontaneous erection’. As you get older, it will go away automatically.
Other Topics
Continue exploring your sexual health.
Ejaculation
When you have an orgasm, you ejaculate. Semen comes out of your penis through your urethra. This is called ejaculating or coming. This usually happens...
Scrotum
The scrotum will look different from person to person: large, small, wrinkly or quite smooth, with or without hair. One testicle usually hangs slightly lower...
Problems with foreskin
Some boys find they have difficulty pulling back their foreskin properly. Masturbating or having sex hurts. In addition, it’s impossible to clean your glans properly. 2...
