Most of the time, discharge after sex is normal: it’s semen leaking out, arousal fluid or mucus from the cervix. A strong smell, an unusual colour, itching or burning point more towards an infection, which is worth getting checked.
What’s normal after sex
Semen. It leaks out for a few minutes to a few hours, often when you stand up or the next morning. It’s whitish, a little thick at first then runnier, with a faint, distinctive smell. That’s normal and doesn’t lower your chances of pregnancy: see our article on semen leaking out after sex.
Arousal fluid. When you’re aroused, the vagina makes a clear, slippery fluid. It can keep coming out for a while after sex.
Cervical mucus. It changes through the cycle. After your period it’s often scant, or thick and whitish. Around ovulation it becomes abundant, clear and stretchy, like raw egg white. After ovulation it thickens again. This discharge is there with or without sex, but you often notice it more afterwards.
How to tell them apart
- Semen: whitish, in the hours after sex without a condom, no discomfort.
- Arousal fluid: clear and watery, right after sex, gone quickly.
- Mucus: clear and stretchy around ovulation, thicker the rest of the cycle, also there on days without sex.
If you used a condom and still notice discharge, it isn’t semen: it’s your arousal fluid or mucus.
These fluids can mix, and you can’t always tell them apart by looking. What matters most is the absence of unusual signs. The sperm that count have already left the vagina: see how long sperm survive inside your body.
Signs to watch for
Some discharge isn’t what’s usual for you:
- a strong or unpleasant smell, such as a fishy smell, which can be stronger after sex;
- a grey, yellow or green colour;
- thick, lumpy discharge, like cottage cheese;
- itching, burning or soreness around the vulva;
- burning when you pee, pain during sex or in your lower belly.
These signs can come from bacterial vaginosis (an imbalance of the vagina’s natural bacteria), a yeast infection, or a sexually transmitted infection such as trichomoniasis, chlamydia or gonorrhoea. Only an examination can tell which. Some STIs cause no symptoms at all, so testing is worthwhile if you have a new partner.
Avoid douching and perfumed soaps inside the vagina: they upset its natural balance and make infections more likely. Washing the outside with water, or a mild soap, is enough.
A little blood after sex
A few spots of blood after sex can happen, for example with vaginal dryness or minor irritation. If it keeps happening, if the bleeding is heavy or comes with pain, get examined: an infection or a change on the cervix can be the cause. Keep your cervical screening up to date too.
When to see a doctor
- Discharge that changes in smell, colour or texture, with or without itching.
- Burning, pain during sex, when you pee or in your lower belly, or a fever.
- Bleeding after sex that keeps happening, or any bleeding after menopause.
- Unprotected sex with a new partner, or a partner with symptoms: for STI testing.
- Unusual discharge during pregnancy.
