Hey thanks for your faith in the health care magic.i have gone through your question and understood your problem. Now both Trichomonas and chlamydia trachomatis are different organisms, although both of these are well known organisms causing sexually transmitted diseases. Trichomoniasis is a sexually transmitted disease (STD) caused by a small organism called Trichomonas vaginalis. Women are most often affected by this disease, although men can become infected and pass the infection to their partners through sexual contact. Men often do not have symptoms of trichomoniasis and usually do not know they are infected until their partners need treatment. But when symptoms do occur, they include: Irritation inside the penis Mild discharge Slight burning after urination or ejaculation Many women do have signs or symptoms of infection. Symptoms in women can include: Greenish-yellow, frothy vaginal discharge with a strong odor Painful urination Vaginal itching and irritation Discomfort during intercourse Lower abdominal pain (rare) Symptoms usually appear within five to 28 days of exposure in women. To diagnose trichomoniasis, lab tests are performed on a sample of vaginal fluid or urethral fluid to look for the disease-causing parasite. Usually an oral antibiotic called metronidazole (Flagyl) is given to treat trichomoniasis. Now as far as Chlamydia trachomatis is concerned. Chlamydia is a disease caused by the bacteria Chlamydia trachomatis. It is most commonly sexually transmitted. As many as 25% of men with chlamydia have no symptoms. In men, chlamydia may produce symptoms similar to gonorrhea. Symptoms may include: Burning sensation during urination Discharge from the penis or rectum Testicular tenderness or pain Rectal discharge or pain About 70% of women with chlamydia have no symptoms. Symptoms that may occur in women include: Burning sensation during urination Painful sexual intercourse Rectal pain or discharge Symptoms of PID, salpingitis, liver inflammation similar to hepatitis Vaginal discharge The diagnosis of chlamydia infection involves sampling of the urethral discharge in males or cervical secretions in females. The usual treatment for chlamydia is antibiotics, including tetracyclines, azithromycin, or erythromycin. So as far as the symptoms or the presentation of both of these conditions is concerned, they appear to be almost similar. The difference is in the treatment. So exact diagnosis and treatment is very important Hope I have answered your query. If you like my answers and wish me to answer in future, bring it to my attention