If you're worried you have got an STI, go for a check-up at a sexual health clinic as soon as you can.

Don't have sex, including oral sex, without a condom until you have had a check-up.

You can have an STI without knowing it and infect your partner during sex.

STI symptoms:

• unusual discharge from the vagina, penis or anus
• pain when peeing
• lumps or skin growths around the genitals or anus
• a rash
• unusual vaginal bleeding
• itchy genitals or anus
• blisters and sores around the genitals or anus

Common types of STI

• Chlamydia
• Gonorrhoea
• Trichomoniasis
• Genital warts
• Genital herpes
• Pubic lice
• Scabies
• Syphilis