Anal warts and hemorrhoids both show up as bumps near the anus, but they're entirely different problems. Anal warts are caused by HPV, a sexually transmitted virus, and usually feel like small, firm, flesh-colored growths that don't bleed much. Hemorrhoids are swollen veins, soft, often painful, and prone to bleeding with bowel movements. Only a clinician can confirm which you have.
within 2 years
prevents, doesn't treat
| Item | Value |
|---|---|
| Clears on its own | 9 in 10 — within 2 years |
| Wart types | 6 & 11 |
| Cancer types | 16, 18 + |
| Vaccine | Gardasil 9 — prevents, doesn't treat |
What each one actually is
These two get confused because they share the same real estate while coming from completely different biology. Knowing what's underneath each bump sorts them out fast.
Anal warts
Anal warts are growths caused by the human papillomavirus (HPV), the most common STI CDC, About HPV. The low-risk types behind warts, HPV 6 and 11, cause more than 90% of genital and anal warts but do not cause cancer CDC Pink Book. Warts usually appear as a small bump or a cluster of bumps in the genital or anal area, sometimes flat, sometimes with a cauliflower-like texture. They spread through skin-to-skin contact during vaginal, anal, or oral sex, and penetration isn't required for the virus to pass. Because warts can develop months or even years after the virus is acquired, the timing rarely points cleanly to a single exposure. For the broader picture, see our overview of hpv & genital warts.
Hemorrhoids
Hemorrhoids are swollen blood vessels in and around the anus, not an infection and not contagious. They form from pressure: straining on the toilet, constipation, heavy lifting, pregnancy, or long stretches of sitting. Internal hemorrhoids sit inside the rectum and often announce themselves with painless, bright-red bleeding. External hemorrhoids develop under the skin around the anal opening and can become tender, itchy, or swollen, especially if a clot forms inside one. They tend to flare and settle on their own as bowel habits change.
The key differences that tell them apart
A handful of features usually separate the two, even before a clinician looks:
- Texture and feel: warts are typically firm, dry, and rough or cauliflower-like; hemorrhoids feel soft, fleshy, and can be tender or warm.
- Bleeding: hemorrhoids bleed readily, often bright red on the toilet paper or in the bowl after a hard stool. Warts rarely bleed unless irritated or scratched.
- Pain: a clotted (thrombosed) external hemorrhoid can be sharply painful; warts are usually painless, though they may itch.
- Number and pattern: warts often arrive as multiple small bumps that may grow or spread over weeks; a hemorrhoid is usually one swollen lump or a small group in a fixed spot.
- Course over time: warts persist and can multiply until treated, while hemorrhoids often shrink as constipation or straining improves.
- Transmission: HPV is sexually transmitted and contagious; hemorrhoids are a mechanical, non-infectious problem you can't pass to a partner.
Side-by-side comparison
| Feature | Anal warts (HPV) | Hemorrhoids |
|---|---|---|
| Cause | HPV infection (types 6 and 11) | Swollen veins from pressure/straining |
| Contagious? | Yes — sexually transmitted | No |
| Texture | Firm, rough, cauliflower-like | Soft, fleshy, sometimes tender |
| Bleeding | Uncommon | Common, bright red |
| Pain | Usually painless; may itch | Can be very painful if clotted |
| Number | Often multiple, can spread | Usually one or a localized cluster |
| How it resolves | Needs treatment; can recur | Often improves with bowel-habit changes |
| Diagnosis | Visual exam; biopsy if unclear | Physical exam, sometimes anoscopy |
Which one is it for you?
If your main symptom is bright-red bleeding with bowel movements, a tender lump that came on fast, or discomfort tied to constipation, hemorrhoids are the likelier explanation. If you're noticing painless little growths that have been creeping up in number, especially after a new sexual partner, anal warts move higher on the list. The two can also coexist, so self-diagnosis only takes you so far.
Even when HPV is the answer, most infections clear on their own within two years, and the wart-causing types are not the cancer-causing types. People routinely blur the two together. But persistent high-risk HPV is responsible for over 90% of anal cancers NCI, HPV and Cancer, so any anal bump that doesn't fit the hemorrhoid pattern deserves a real look.
The practical next step
There's no general blood or urine test that diagnoses anal warts. HPV testing isn't used to confirm warts, and results don't guide their treatment. Diagnosis is visual: a clinician examines the area, and if anything looks atypical, takes a small biopsy. Routine HPV screening isn't recommended for men at all, and for women HPV is detected through cervical screening rather than a general STD panel, so don't expect an anal-wart answer to show up on a standard panel. If you've had a recent exposure and want to understand timing, our guide on when to test after exposure explains the windows for the infections that do have tests.
For hemorrhoids, the first-line fix is mechanical: more fiber and water, no straining, and short-term over-the-counter relief. If a bump persists, bleeds repeatedly, or you're unsure what you're feeling, get it examined rather than guessing. Worried about other exposures at the same time? You can get tested for the STIs that have reliable screening.
If it turns out to be warts
Wart treatment is straightforward but takes patience. Options include patient-applied prescription creams or gels at home over several weeks, or provider-administered treatments like freezing with liquid nitrogen, acid solutions, or surgical removal CDC, Anogenital Warts. None is clearly best, and treating warts removes the visible growths but does not cure the virus itself, so they can recur. The HPV vaccine, Gardasil 9, is prevention. It won't clear an infection or warts you already have, but it protects against future infection and the types behind most warts and cancers; see gardasil vs gardasil 9 for how the current shot compares to older versions.
When to see a clinician
Book a visit if you notice any anal or genital growth you can't confidently explain, bleeding that doesn't settle within a few days, a lump that's painful or growing, or symptoms after a new sexual partner. Anyone with HIV or a weakened immune system should be especially proactive. CDC's 2021 guidance found the data insufficient to recommend routine anal cytology broadly, but some specialty groups now suggest periodic anal Pap testing for high-risk groups where high-resolution anoscopy referral is available. Don't try to cut, burn, or pick at any bump yourself; that risks infection and obscures the diagnosis.