Ejaculation

Ejaculation is when semen is released from the penis. It usually happens during orgasm, but not always — and orgasm can happen without ejaculation too. It's a normal part of how the body works, and it's how sperm leave the body during sex.

• Ejaculation is the release of semen from the penis, usually during orgasm.
• Semen contains sperm (the cells that can fertilise an egg and cause pregnancy).
• It can happen during sex, masturbation, or involuntarily during sleep (wet dreams).
• The average amount of semen per ejaculation is about a teaspoon (2-5ml).
• Ejaculation and orgasm are related but separate things — you can have one without the other.

[DIAGRAM: Simple diagram showing the pathway of ejaculation: testes → epididymis → vas deferens → urethra]

How it works

During sexual arousal, sperm travel from the testicles through a series of tubes (the epididymis, then the vas deferens) and mix with fluids from the prostate gland and seminal vesicles to form semen. When ejaculation happens, the muscles around the base of the penis contract rhythmically and push semen out through the urethra.

Just before ejaculation, there's a feeling often described as the "point of no return" — a moment where the body is going to ejaculate whether you want it to or not. Learning to recognise this feeling is part of how people learn to last longer during sex (see edging).

Before ejaculation, a small amount of clear fluid called pre-ejaculate (pre-cum) may appear at the tip of the penis. This is produced by the Cowper's glands and can contain small amounts of sperm, which is why pulling out isn't a reliable method of contraception.

Wet dreams

During puberty, it's common to ejaculate during sleep — this is called a nocturnal emission or "wet dream." It happens because the body is getting used to producing semen, and it's completely involuntary. You might wake up with damp underwear or sheets. It's normal, it doesn't mean anything is wrong, and it happens to most people with a penis at some point.

Things people get wrong

"More semen means more pleasure." The amount of semen has nothing to do with how good an orgasm feels. Volume varies from person to person and from time to time.

"You should be able to control when you ejaculate." Ejaculatory control develops with experience. Many young people (and plenty of adults) find they ejaculate sooner than they'd like, especially when they're new to sex. This is normal and usually improves with time and practice.

"If you don't ejaculate, it's bad for you." There's no medical need to ejaculate regularly. The body reabsorbs unused sperm on its own. "Blue balls" (an aching feeling from prolonged arousal without ejaculation) is uncomfortable but not dangerous and goes away on its own.

Things people ask about ejaculation

How far does semen go when you ejaculate?

It varies. Sometimes it shoots out with some force, other times it just dribbles. Both are normal. Distance isn't an indicator of anything about health or virility.

Is it normal to ejaculate really quickly?

Yes, especially when you're young or new to sexual activity. Premature ejaculation is very common. With time and experience, most people gain more control. If it's causing distress, a GP can help.

Can you ejaculate without having an orgasm?

Yes, though it's less common. The reverse is also true — it's possible to orgasm without ejaculating. They're related but separate processes.

What colour should semen be?

Usually white or greyish-white. Slightly yellow is also normal. If it's consistently pink, red, or brown (which could indicate blood), it's worth seeing a doctor — usually not serious, but better to check.

Does it smell?

Semen has a mild, slightly chlorine-like or musky smell. This is normal. A very strong or unpleasant smell could indicate an infection.

Ejaculation is when a white fluid comes out of the end of the penis. This fluid is called semen, and it contains tiny cells called sperm. If sperm gets inside someone's body and meets an egg, pregnancy can happen.

Ejaculation usually happens during an orgasm — the strongest feeling of pleasure during sex or when someone touches themselves. But they're actually two separate things. You can sometimes have one without the other.

Before ejaculation, a small amount of clear fluid might appear at the tip of the penis. This is normal and can happen when someone is turned on. This fluid can also contain small amounts of sperm.

During puberty, it's common to ejaculate during sleep. This is called a wet dream. It happens because the body is getting used to making semen. It's completely normal and nothing to worry about.

The amount of fluid that comes out is usually about a teaspoonful. It's usually white or greyish-white.

Many young people find they ejaculate faster than they'd like, especially when they're new to sex. This is very common and usually gets easier to control with time.