References UK clinical guidance from the NHS, the British HIV Association (BHIVA), and the British Association for Sexual Health and HIV (BASHH). Last updated: April 2026.
Red spots, bumps or patches on or near the vulva can be worrying, but they’re not always caused by STIs. Irritation, shaving bumps, folliculitis, allergic reactions and skin conditions are all more common causes. Some STIs do cause visible spots or lesions, so it’s worth knowing what to look out for.
Here’s a practical guide.
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Common Non-STI Causes
| Cause | Features |
|---|---|
| Razor burn / ingrown hairs | Red bumps after shaving or waxing, can be sore |
| Folliculitis | Inflamed hair follicles, small red pustules |
| Contact dermatitis | Red itchy patches from soap, pads, fabric or products |
| Eczema or psoriasis | Dry, itchy, flaky patches |
| Heat rash | Small red bumps in sweaty areas |
| Cysts | Firm lumps, sometimes tender |
| Boils | Painful red swellings with pus |
| Lichen sclerosus | White or red patches, itching, chronic |
STI-Related Spots and Lesions
- Herpes — cluster of small painful blisters, often recurring
- Genital warts — flesh-coloured growths, usually painless
- Syphilis chancre — single painless firm ulcer
- Molluscum contagiosum — small dome-shaped flesh-coloured bumps
- Scabies or pubic lice — itchy rash with tiny tracks or visible lice
Questions to Help Identify the Cause
- Did the spots appear after shaving or waxing?
- Are they itchy, painful or painless?
- Have you used new products (soap, detergent, pads)?
- Have you had recent sexual contact?
- Are there blisters, ulcers or growths?
- Do they come and go, or are they persistent?
When to Seek Medical Advice
- Painful blisters or ulcers
- Spots that don’t heal within a few weeks
- Spots that grow or change
- Fever or general illness alongside rash
- Recent new sexual partner
- Anxiety or uncertainty about what’s going on
What to Do
- Look at the spots — note their appearance, location and whether they change
- Avoid picking, scratching or using strong products on the area
- If they persist or worry you, see a clinician
- Sexual health clinics can examine and test quickly and confidentially
Self-Care While Waiting to Be Seen
- Wear loose cotton underwear
- Avoid scented products and douching
- Use plain water for washing
- Avoid sex until you’ve been assessed
- Don’t squeeze or pop lesions
Read more: Skin rashes and STIs | Vaginal infections | What is herpes?
Frequently Asked Questions
Can shaving cause red spots that look like an STI?
Yes. Ingrown hairs, folliculitis and razor burn are very common and can mimic STI lesions.
Should I always test for STIs if I have genital spots?
Not always, but testing is reasonable if the cause isn’t obvious or if you’ve had recent sexual exposure.
How do I tell herpes from other causes?
Herpes typically causes painful blisters that burst into ulcers and heal. If in doubt, a swab from a fresh blister gives a definitive answer.
Related reading
- Common STI Symptoms in Women
- How Different STIs Affect Vaginal Discharge
- What Are Vaginal Bumps? Causes and When to Worry
- White, Yellow, Green and Brown Vaginal Discharge: What It Means
- Abnormal Genital Discharge and Chlamydia
Sources
- NHS — Sexual health conditions
- BASHH — UK clinical guidelines for STI management
- British HIV Association (BHIVA) — HIV treatment guidelines
- Terrence Higgins Trust — sexual health information
- UK Health Security Agency — STI surveillance data
Steve Page is a recognised expert on Sexually Transmitted Diseases (STDs) and STD treatments, having published numerous articles in peer-reviewed journals and presented his research at conferences around the world. He has an in-depth understanding of the latest medical research on STDs, and is an advocate for the development of new treatments and protocols to improve the health of those affected. In addition to his research, he has dedicated his career to understanding the causes and symptoms of STDs, as well as how to best treat those impacted.
