First, let’s kill the myth for good: no frog, toad, or any other amphibian can give you warts. Not even a little. Warts in humans are caused by a virus, and you can’t catch that virus from a toad. The rumor probably started because many toads have bumpy, warty-looking skin — but those bumps are just skin texture, not contagious growths.
Here’s where it gets actually important though. Those bumpy glands on a toad’s skin? Some of them produce poison. According to Poison Control, certain frogs and toads secrete toxins that can cause irregular heart rhythm, dizziness, cardiac arrest, and paralysis in humans. These severe effects are linked to particularly toxic species — not every frog or toad you’ll encounter carries that level of risk. But because it can be hard to tell species apart at a glance, it’s smart to treat all wild amphibians with caution.
For pets, the risk is even more urgent. Toad poison is toxic enough to kill small animals if they swallow enough of it. Dogs are especially at risk because they’ll mouth or bite a toad before anyone can stop them. This can happen fast, so it’s not something to brush off.
For humans, toad toxins can cause skin and eye irritation on contact. That’s not life-threatening for most healthy people, but it’s uncomfortable and a good reason to wash your hands after handling any wild frog or toad — and to absolutely avoid touching your eyes or mouth before you do.
Bottom line: don’t stress about warts — that was never real. But do take the actual poison seriously. Wash your hands after handling amphibians, keep pets away from toads, and know that not all frogs and toads are equally harmless just because they look cute.