Welcome to HCM
We understand your concerns
Swelling on the knee joint could happen due to simple contusion
, blocks in the blood veins carrying blood to leg (then swelling might also be available upto toes), or arthritis
. You did not mention whether there is pain and burning sensation and did you use some home remedies
or first aids like hot water fermentation. Just try to remember whether you had any impact there. If not, then consult a general physician for further advice.
Get well soon.