It looks for part of the virus (called an antigen) in your blood as well as HIV antibodies. This test can tell if there's HIV in your blood within 2 to 6 weeks of when you were exposed.

Find out what you need to know about testing for STDs at home. Learn about the tests available, how to use them, and how often.

Where to get STD testing for free with or without a copay From free clinics to at-home testing, there are plenty of places to get tested if you can't or don't want to head to your physician.

At-home STI tests can be convenient and discreet. See our choices for the top online STD test providers, here.

7. You may have to come back for additional screening While some STDs will show up right away, those that require blood tests—like HIV—may not appear on a test for two weeks or longer, Ghanem ...

"The World Heath Organization has identified HIV and syphilis as two of the top diseases needed in a portable blood test for pregnant women," Sia said.

Blood tests can help a doctor diagnose a variety of health conditions, including infections, anemia, high cholesterol, vitamin deficiencies, organ failure, HIV, cancer, and diabetes. Doctors use ...

A shortage of blood sample tubes is causing "widespread disruptions" in STD testing, as cases of syphilis increase sharply.

Traditional STD testing might also be more broad—a visit to the doctor could include blood, urine and swab tests to diagnose a variety of STDs, whereas women would need multiple at-home tests to ...

Researchers have developed a new low-cost smartphone accessory that for the first time replicates all mechanical, optical, and electronic functions of a lab-based blood test for some sexually ...