This test is ordered to check successful diagnosis and treatment for bacteria Chlamydia trachomatis. Chlamydia is one of the common STD and can lead towards severe problems. Testing for Chlamydia trachomatis and Neisseria gonorrhea (gonorrhea) is done at the same time because the infections caused by these two got almost same symptoms. Proper diagnosis is important as both infections need different treatment. There is no specific symptom of the disease so regular check-ups are required. All sexually active women are at the risk of getting the disease and should get yearly screening. Risk factors includes; having other STDs, especially HIV, a partner with an STD, use of illegal drugs and frequent and unsafe sex practices.