Why is swelling so bad ?

[Benji Snap]

I hurt my right knee... it has been a bit swollen for the last week, and hotter than my other knee.

Why is the swelling bad ?

I am just wondering because, if it was so bad, then why does our body do it? to self destruct?

[Benji Snap]

I know im meant to rest it... I just want to know why I'm meant to try reduce swelling with anti-inflammatory drugs and ice... why is the swelling bad ? and if its bad why does our body do it ?

[JoeST]

This may not be 100% correct, but the way it has been explained to me is this.
Swelling is an accumulation of blood, white blood cells, & or water to help prevent farther damage to a stressed area of the body.
As for why anti inflammatory drugs & ice are used, well that I don't have a good answer for other than personal comfort. Personally I refuse to take any kinda prescription medication & even over the counter stuff, unless the pain or sickness is totally unbearable.

[Radok]

You've made tiny ruptures in tissues causing fluid and blood to accumulate there. Too much swelling can cause further cell death.