Why do mosquito bites itch?

The blood of humans is the source of protein for mosquito eggs, and only females bite. The proboscis, or portion of the mouth, is

used by mosquitoes to sever skin in order to get access to veins or capillaries where blood is then

drawn. Saliva serves as an anesthetic, preventing pain during a mosquito bite. Biting,

swelling, and inflammation are brought on by the release of histamine from mosquito saliva. An infection can activate the

body's immune system through the proteins in the bite. White blood cells are able to reach the

damaged region with the aid of histamine, which is released by the body's immune system.

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