Rumor Refutation：Learn theTruth and Bust the Rumors

Rumor 3 :The larger the mosquito bite bump, the stronger the toxicity of the mosquito

/✗:This is a wrong statement

The size of a mosquito bite bump varies among individuals and is unrelated to the toxicity of the mosquito. When mosquitoes suck blood, they insert their piercing-sucking mouthparts into human skin. Their saliva contains various chemicals that inhibit vasoconstriction, blood coagulation, and platelet aggregation. These mosquito “saliva” injected into the human body can cause a local allergic reaction, leading to the accumulation of immune cells and resulting in itchiness and local inflammatory responses.

Due to differences in the strength of each individual’s immune system response, reactions to mosquito bites vary. Some people have almost no reaction, but most people will develop red spots, papules, wheals, and itchiness on their skin after being bitten by mosquitoes. For individuals with allergic constitutions, the skin around the bite site may release a large amount of cytokines, causing exaggerated reactions such as blisters, plaques, ecchymoses, swelling, and pain, which may persist for an extended period before resolving.

Furthermore, when mosquitoes bite certain special parts of the human body (such as the eyelids and lips), significant swelling, known as angioedema, is more likely to occur due to the abundance of loose connective tissue in these areas.