As many as 1 in 4 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

Only about 30% of women with chlamydia have 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

See also: Chlamydia (female)

The diagnosis of chlamydia infection involves sampling of the urethral discharge in males or cervical secretions in females. If an individual engages in anal sexual contact, samples from the rectum may also be needed. The sample is sent for a fluorescent or monoclonal antibody test, DNA probe test, or cell culture. Some of these tests may also be performed on urine samples.