If you have vaginal, anal or oral sex with a man, use a condom.
When used correctly, condoms protect against unintended pregnancy and STIs.
Lesbians and bisexual women are not immune from sexually transmitted infections (STIs), and it's important not to be complacent about getting tested for them, according to Ruth Hunt at the charity Stonewall.
Sometimes, lesbian and bisexual women are told they don't need to be tested for STIs. A survey of lesbian and bisexual women by Stonewall revealed half of those who have been screened had an STI.
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). Thrush is caused by an overgrowth of yeast called candida.
"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.
In addition to using condoms, find out about the form of contraception that suits you best.If you think you may be at risk of unintended pregnancy, emergency contraception (the "morning after" pill or an IUD) is available from pharmacies, your GP, hospital, family planning clinics and some sexual health clinics.