Many sexually transmitted infections may not cause any symptoms during the early stages. However, some early signs to watch for include:
- Acute HIV symptoms (appear 2 – 4 weeks after infection): fever, rash, swollen lymph nodes, sore throat, mouth ulcers, fatigue, and body aches.
- Genital warts in men and women: Small pink bumps measuring approximately 1 – 3mm, typically without pain or itching, appearing around the genital or anal area
- Signs of gonorrhea: Painful or frequent urination, pus-like discharge from the urethra, or unusual vaginal discharge
- Signs of syphilis: Painless sores (chancres) that may appear on the genitals, mouth, or anus. These sores often heal on their own within 3–6 weeks, but this does not mean the infection has resolved. The bacteria can remain in the body and progress to later stages.
Because these symptoms can be mistaken for common illnesses or may not appear at all, testing is the most reliable way to detect an infection. HIV and syphilis are typically tested using blood samples, while gonorrhea and chlamydia can be tested using urine samples or swabs from the site of exposure, including the throat and rectum if oral or anal sex has occurred.
Yes. DIAG follows applicable regulations and established procedures to protect customers’ personal information and test results. Results are provided only to the customer or to a person who has been validly authorized by the customer.
You can undergo testing with confidence, knowing that your privacy and personal information will be protected.
The appropriate time for testing depends on the specific infection, as each pathogen has a different window period.
If you have had unprotected sex or suspect possible exposure, you should contact DIAG for guidance for the most appropriate testing time. In some cases, repeat testing after a certain period may be recommended to help ensure an accurate result.
No. You do not need to fast before undergoing STI testing at DIAG.
However, additional preparation may be required depending on your current health condition or if the STI test is performed together with other tests that have specific requirements. Please contact DIAG directly for detailed instructions.




