There are dozens of sexually transmitted infections. Chlamydia, genital warts, crabs, herpes, syphilis and gonorrhoea are common ones but there are lots more.
Some infections don’t have any symptoms at all so you won’t always know that you’ve got one. If they’re left untreated they can lead to other complications, for example the human papilloma virus which is responsible for genital warts can cause cervical cancer in some women, and chlamydia can cause infertility in men and women. Some infections can take time to show any symptoms which, as well as causing damage, means they can be passed on unknowingly. Some infections, for example crabs and herpes can be passed on even when you do use barrier contraceptives because these don’t cover all the genital area.
If you would like help, get in touch with us for confidential information, advice and support.
If you are worried that you have contracted a sexually transmitted infection or want to know more information
Brook - for more information about STI's and how to avoid them
NHS Choices - find out where your nearest sexual health clinic is