This test screens for syphilis, an infection that leads to sores, rashes, and lesions on your body. If left untreated, it can spread to the brain and nervous system (neurosyphilis) or the eyes (ocular syphilis), potentially leading to blindness. Fortunately, syphilis can be cured with treatment.

You might consider testing if you:

• Have had unprotected sex or do not speak to your partners about their STD status

• Have multiple sex partners or learn your partner has an STD

• Are a man who has sex with men

• Have exchanged sex for drugs or money

• Are pregnant

This test does not require fasting.