Certain STI’s don’t always cause symptoms and can develop into more serious conditions if untreated. Chlamydia is a sexually transmitted infection from the bacteria Chlamydia trachomatis. Chlamydia is by far the most common sexually transmitted disease in the UK at present. A large percentage of people with this will not exhibit any symptoms thus chlamydia often being referred to as “The Silent Epidemic”. Chlamydia can be easily treated but if left untreated it can cause significant reproductive problems. If your result is positive it is important to contact your partner(s) to advise them of the result and get tested/treated as well. Gonorrhoea is a sexually transmitted infection caused by the bacteria Neisseria gonorrhoeae. If left untreated, gonorrhoea can cause severe reproductive and health problems.