Herpes (HSV) 1 & 2 TestHerpes Testing for Your Sexual Health Herpes testing is an important part of maintaining sexual health, whether you're experiencing symptoms, entering a new relationship, or completing your annual STD screening. This blood test checks for HSV 1 and HSV 2, which can cause painful sores around the mouth (oral herpes) or genitals (genital herpes). While there is no cure for herpes, early detection through testing can guide treatment to alleviate