Why are scabs so itchy?

We all know that picking and scratching at a scab is a bad idea – it only increases healing time and can even lead to infection. But a healing scab just begs to be scratched. Why do scabs itch so much?

“I say that skin is very smart and insanely stupid at the same time,” said Dr. Adam Friedman, professor and chair of dermatology at GW Medical Faculty Associates, a nonprofit organization affiliated with George Washington University, told Live Science. “That doesn’t seem to make any sense. Why would that happen when it could actually lead to bad things?”

Why are scabs so itchy? Source link Why are scabs so itchy?

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