Why do Flea Bites Itch?

Okay, so they’re horribly itchy… But why flea bites itch so much?

Well, first of all, most insect, pest or animal bites do itch because the wound or welt tends to be inflamed and very irritating to the touch. And, as I’m sure your mother told you innumerable times as a kid, the more you scratch it the worse it’s going to get.

It’s not just the physical sensation of the bite, though. Itching can stem from the fact that insects and fleas carry all kinds of dirt and germs around with them and when they bite, their saliva can mix in with the wound.

In fact this concern for bacterial infection and dirt getting into the wound is one of the main reasons that we shouldn’t scratch at bites… God alone knows what kind of filth is harbored under our own fingernails.

You can probably double that for your pets’ claws, too.

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