Why Do Mosquito Bites Itch?

Why do mosquito bites itch?

In fact, only female mosquitoes feed on blood and they only do so when they are developing eggs. Because they require protein and iron to develop their eggs.

The mosquito pierces the upper layer of your skin, locates a good vessel and releases some of her saliva into the wound.

Later your immune system realizes something is going on, and springs into action. Your plasma cells produce immunoglobulins (antibodies) and send them to the area of the bite.

These antibodies cause your mast cells to release histamines to combat the foreign substance. The histamine reaches the area under attack, causing blood vessels there to swell.

When the blood vessels expand, the swelling irritates nerves in the area. You feel this nerve irritation as an itchy sensation.


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