You can have an STI without experiencing any symptoms.

Or your symptoms are so vague that they don’t bother you. Women in particular often don’t realise that they have an STI. If you do have symptoms, these usually involve:

  • Discharge (sometimes pus) from your penis, vagina or anus. Women often experience increased discharge, which may be watery, milky, yellow or green in colour and smell unpleasant.
  • Burning sensation, irritation, and pain during or after urinating or only urinating small amounts.
  • Sores, warts or blisters on the head of your penis, your vagina, anus or mouth.
  • Itching in your pubic hair, the head of your penis, labia or anus
  • Swollen glands in your groin.
  • Pain in one or both testicles.
  • Pain in your abdomen.
  • Pain during sex or irregular and abnormal blood loss, for example, after sex or between periods.

These can be a symptom of other diseases.