eli5 why the body makes an area of infection swell up ?
In: 3
It happens due to a process called inflammation (body’s first response to any type of injury)
The white blood cells(cells that fight infection) are travelling to the infected/injured area via ofc blood which is contained in blood vessels.
So when these cells reach the general area of infection, they kinda force some gaps in the blood vessel (so they can leave blood and reach the injured tissue) which results in some fluid to leak from the blood vessels, into the injured area, which results in swelling.
Hope this helps, feel free to ask more questions.
Edit : I can go into many many details of the process if you want, but since this is ELI5, I’ll stop here.
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