What Does an STD Rash Look Like? A Visual Guide

STD rashes can appear as red, itchy bumps, sores, or patches, often in the genital, anal, or mouth areas. These rashes may indicate infections like syphilis, herpes, or HIV. If you notice any of these symptoms, it’s important to get tested at a clinic to confirm the diagnosis and get appropriate treatment.

STD Rashes: Descriptions

• Syphilis:

  • Appearance: Red/brown sores (chancre) or rough red rash on palms/soles.

  • Timing: 3–6 weeks post-exposure (CDC).

• Herpes:

  • Appearance: Clustered blisters around genitals/mouth.

  • Timing: 2–12 days post-exposure.

• HIV:

  • Appearance: Red, itchy patches (acute HIV rash).

  • Timing: 2–4 weeks post-exposure.

When to Get Tested

If you notice a rash near your genitals or mouth after unprotected sex, don’t wait – visit a clinic immediately.

Can an STD Rash Go Away on Its Own?

Yes, but the infection remains. For example, a syphilis rash may disappear without treatment, but the bacteria stay in your body, causing long-term damage.

Case Study: Lisa’s Syphilis Scare

Lisa, 34, noticed a painless sore on her lip. A 10-Panel Test confirmed syphilis. “The clinic’s quick diagnosis saved me from complications,” she says.