Women who have sex with other women can pass on or get STIs. Know how to protect yourself.
Women can catch STIs such as herpes, genital warts and chlamydia when exchanging bodily fluids.
Any one-on-one contact, such as oral sex or using the same hand when touching yourself and then your partner, can put you at risk. If 2 women are both menstruating they are at a higher risk, too.
If you have vaginal, anal or oral sex with a man, use a condom. When used correctly, condoms protect against unintended pregnancy and STIs. In addition to using condoms, find out about the form of contraception that suits you best.
If you think you could be at risk of unintended pregnancy, you have the option of using emergency contraception (the "morning after" pill or an IUD).
The emergency pill is available from some pharmacies, GPs, contraception (family planning) clinics and some sexual health clinics. The IUD is available from contraception clinics, some sexual health clinics and some GPs.
This is caused by a virus, which can spread if you have vaginal, anal or oral sex, or share sex toys. It can also cause cold sores on the mouth and nose.
Symptoms include painful blisters and ulcers around the genital area, although some women may have no symptoms.
Antiviral tablets can help the healing process. Read more about genital herpes.
These are fleshy growths in the vulval and anal region. They may be itchy, but are usually painless.
They are caused by certain strains of the human papilloma virus (HPV), which are usually sexually acquired through skin contact, such as rubbing vulvas together.
Women with genital warts do not need more regular smear tests than those without them. There are a variety of treatment options, including freezing and medicated creams. Read more about genital warts.
Trichomoniasis can be passed between women during any sexual activity that involves the exchange of vaginal fluid.
Symptoms include a frothy discharge, pain when peeing, vulval soreness, and sometimes an unpleasant vaginal odour. Some women do not have any symptoms. It is treated with antibiotics.
Read more about trichomoniasis.
These STIs are caused by bacteria, which can infect the cervix, rectum, throat and urethra. There may be a discharge, but usually there are no symptoms.
If the conditions are not treated, the bacteria may lead to an infection in the fallopian tubes and infertility.
Chlamydia and gonorrhoea can be passed between women through shared sex toys, hands, and by rubbing vulvas together. Treatment is with antibiotics.
Read more about chlamydia and gonorrhoea.
Syphilis is a bacterial infection that causes a painless ulcer, usually in the genital area. It will disappear on its own, but other symptoms may appear. These can include a rash on the body and swollen glands.
If it is not treated, syphilis can cause serious nerve and body organ damage later in life.
In its early stages, syphilis is extremely infectious and can be passed on by close skin contact during sex. Treatment is with antibiotic injections or tablets.
Read more about syphilis.
The vagina is self-cleansing, so there's no need to wash inside it (douching). Vaginal soreness and vulval irritation can be caused by overuse of perfumed soaps, bubble baths and shower gels.
After going to the toilet, always wipe from front to back (from vagina to anus).
Read about how to keep your vagina clean.
If you have any of the symptoms above or are worried you may have an STI, speak to your GP or visit an STI clinic.
Getting tested regularly is a good idea to ensure you have a healthy sex life. NHS services are free.
Find your local sexual health services.
Read more about STIs.
Page last reviewed: Wed Jul 2019 Next review due: Sun Jul 2022