What is the cause of the red and swollen bags that float after a mosquito bite?

Mosquitoes suck human blood through their beaks, and mosquito toxins remain in the human body through the blood, so they begin to redden, itch, and grow packs. In the worst case, there are a range of other reasons. Therefore, after being bitten by mosquitoes, it is necessary to clean up the mosquito venom, thoroughly remove the itching, and eliminate the bag immediately, so that the redness and swelling can fade.

A bite will also be red and swollen, not to mention a mosquito with a needle, the mosquito will inject ** with a bacterium that causes redness and swelling of the human body, just scratch it twice.

Immune inflammatory response. Don't scratch it.

Almost everyone has the unpleasant feeling of being "bitten" by mosquitoes, in fact, it should be said that they are "stung" by mosquitoes. Mosquitoes can't open their mouths, so they won't bite on the **, it actually uses 6 needle-like structures to pierce people**, these short needles are the center of the mosquito's edible mouthparts.

These short needles suck human blood in the same way that they draw blood; The mosquito also releases saliva containing anticoagulants to prevent blood from clotting, so that it can feast peacefully. When the mosquitoes are full of food and drink and float away, all they leave behind is an itchy lump.

However, the itchy sensation is not caused by a short needle pricking or chemicals in the saliva. We feel itchy because the body's immune system releases a protein called histamine to fight foreign substances, and this immune response triggers an allergic reaction at the bite site. Histamine causes swelling of the tissues around the bite when blood flows to the bite site to speed up tissue recovery, and the intensity of this allergic reaction varies from person to person, with some people having a more severe allergic reaction to a mosquito bite.

Only female mosquitoes bite mammals because they have to suck blood every three or four days to get the protein they need to make eggs; Male mosquitoes mainly feed on nectar, while female mosquitoes use animal body heat and physiological changes to search for targets, which may be why human ankles and feet are more commonly bitten by mosquitoes, because the blood vessels in these parts are closer to the body surface, so more body heat is released.

Because when mosquitoes bite people, they secrete some substances that cause humans to feel itchy.

The toxins injected into the body by mosquitoes are automatically turned on by the body to defend against them, forming a package.

Local allergic inflammatory reaction after a bite is the body's protective effect on it.

Because the area becomes swollen after being bitten by a mosquito, it will be packed.

Because after being bitten by a mosquito, the body secretes a protective substance.

The bag that arises after being bitten by a mosquito is the body's protective effect on it.

This is because of the local allergic inflammatory reaction after a mosquito bite.