Chlamydia is quite a dangerous disease because there are many infected individuals who experience no symptoms. Chlamydia will also increase vaginal discharge and possibly light bleeding between periods. This bleeding may indicate that the infection has spread to the uterus. Anal infection may cause discomfort and produce discharge. If chlamydia is not detected and treated there may be serious complications.
Advanced chlamydia can cause infection of the appendix, heart and liver.
In addition, men risk infertility. Chlamydia is also a cause of pelvic inflammatory disease in women. However, the symptoms of PID caused by gonorrhoea are more severe than those caused by chlamydia and hence diagnosis may be difficult. A chlamydia infection may go unnoticed in both males and females for some time. If you have had unprotected sex you should have a test for STD's including chlamydia.