5 doctors weighed in:
What causes your skin to rise following a mosquito bite?
5 doctors weighed in

Dr. Robert Keller
Emergency Medicine
3 doctors agree
In brief: Histamine
Histamine is released in response to your immune system seeing you were invaded by this pesky buy.
The histamine opens the blood vessels and allows your immune system to attack the bacterial, virus and toxins the bug injected into you.

In brief: Histamine
Histamine is released in response to your immune system seeing you were invaded by this pesky buy.
The histamine opens the blood vessels and allows your immune system to attack the bacterial, virus and toxins the bug injected into you.
Dr. Robert Keller
Dr. Robert Keller
Thank
Dr. Jeffrey Fromowitz
Dermatology
In brief: Immune reaction
The swelling is an immunological response to the bite.

In brief: Immune reaction
The swelling is an immunological response to the bite.
Dr. Jeffrey Fromowitz
Dr. Jeffrey Fromowitz
Thank
Get help from a real doctor now
Dr. Christopher Crosby
Board Certified, Dermatology
12 years in practice
93K people helped
Continue
107,000 doctors available
Read more answers from doctors