It sounds like you’re referring to a skin growth—possibly a wart—and the answer did surprise you! Many people assume any bump is a mole, callus, or bug bite… only to learn it’s actually a wart caused by HPV (human papillomavirus), which is far more common—and usually harmless—than most expect.
Based on the context and your earlier interest in the 6 types of warts, here’s a quick guide to help identify what “this” might be:

 

Could It Be One of These?

If it’s on your hand or knee:
→ Likely a common wart: rough, raised, with tiny black dots.
If it’s on the bottom of your foot and hurts when you walk:
→ Probably a plantar wart: flat, hard, and tender to side pressure (not direct press).
If it’s small, smooth, and on your face or legs:
→ Could be a flat wart: pinhead-sized, flesh-colored, often in clusters.
If it’s finger-like near your eye or mouth:
→ May be a filiform wart: fast-growing and flesh-toned.
 The surprise? Warts are viral, not fungal or bacterial—and they can take months or even years to appear after exposure. Also, you can’t “catch” them from toads—that’s a myth!

 

What You Can Do

• Don’t pick or scratch—it spreads the virus.
• Try salicylic acid or duct tape occlusion for common or plantar warts.
• See a doctor if it’s painful, bleeding, on your face/genitals, or not improving after 2–3 months.

If you’re comfortable sharing where it is, what it looks like, or how long it’s been there, I can offer a more specific guess! But remember: only a healthcare provider can diagnose it for sure.
Sometimes the biggest surprise isn’t what it is—but how easily it can be treated once you know.