Chlamydia can also cause tubal infection and damage in women, resulting in infertility later in life. Chlamydial infection needs to be treated with antibiotics for both partners but can be hard to clear up. Genital warts are increasingly common, and are visible as small fleshy or hard lumps in the genital area. There is a link between wart infection and an increased risk of developing cervical cancer. They are treated with paints, freezing or laser, but it may be several months after contact before they appear.
Gonorrhea causes a discharge, pain and sometimes tubal infection, fever and more severe illness.
It is treated with antibiotics. Herpes is a viral infection that gives recurrent bouts of very painful ulcers in the genital region and is difficult to treat. Even syphilis is still around - and in fact is on the increase in certain areas. The BBC is not liable for the contents of any external internet sites listed, nor does it endorse any commercial product or service mentioned or advised on any of the sites. Always consult your own GP if you're in any way concerned about your health.