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garri49 [273]
3 years ago
12

Why do flea bites itch?

Health
2 answers:
anygoal [31]3 years ago
8 0
When the fleas bite, the saliva from the fleas makes the skin of the person that was bitten, itch. The bite doesn't itch and is not harmful but the reaction after on the skin makes the person scratch. Fleas also inject a minor anesthetic so that the flea cannot be detected by the person. Thus the reason this can cause itching. 
IrinaVladis [17]3 years ago
4 0
It is because the flea injects a numbing agent in order to not be detected when latching on
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