Why Do Mosquito Bites Itch

Whenever it comes to mosquito, it’s not the bite that creates problem rather it’s the annoying itch that bothers. The mosquito bite itch due to an allergic reaction to mosquito’s saliva. If you call mosquitoes a bit like flying syringes, it won’t be wrong. Interestingly, it is only the female mosquitoes that bite and not all the varieties of mosquitoes bite their victims.

Understanding Mosquito ‘Bites’

If one can understand how a mosquito bites, it will certainly help to understand the fact as why mosquito’s bites itch. Actually the female mosquito pierces your skin with her proboscis resembling a needle and located on her mouth part used to intake blood.

Mosquito Bites Itch Why Do Mosquito Bites Itch

As soon as the proboscis enters your skin, it instantly searches for the blood vessels located just under the skin. This entire process of injection and extraction takes place in a quick succession. However, this piercing and extracting the blood is not something that cause itch.

In order to keep bold flowing, the female mosquito releases some saliva into the skin. This saliva contains an anticoagulant that prevents the blood from clotting as well as formation of scabs until she sucks blood.

The Itchy Part

Although, this anticoagulant is released by female mosquito to get assistance while feeding, the injection of this anticoagulant saliva into the skin is one major reason of itching. This is not all, besides this anticoagulant, mosquito’s saliva also contains some of the insect’s own proteins as well. Proteins get stuck to the skin cells.

In response to mosquito bite, immune system releases histamines that cause swelling in the affected area. This is another reason why mosquito bites itch. Basically, when the histamines are released, an allergic reaction takes place that cause us to feel an itch on the bitten area. There is nothing wrong with it as it is a natural process of protecting your body by immune system.

This annoying itching is actually caused because of the swelling of the region where mosquito bit you. This swelling increases the pressure on your nerve cells in the area where mosquito bit you and hence gives you itchy sensation every time a mosquito bites you.

Getting Over the Itch

There are many instances where people develop a tolerance against mosquito bites. However, not all the people are lucky enough to develop this tolerance and have to face that annoying itchy feel. There are certain treatments like oral antihistamines or topical antihistamine creams. It is also worth noting here that skin reactions in response to mosquito bites differ from person to person.

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