A swollen knee and surroundings area (very little pain) have anything to do with
Kidney trouble or something else.

Maggie 3

Have you had a fall or maybe knocked your knee?

It sounds like inflammation of the joint,for which you could take anti- inflamatory tablets for.

Not sure where you are getting kidney trouble from!

Go see your GP who will give you a correct diagnoses.

Have you fallen on or bumped your knee recently? Are you propping it up so it's higher than your heart (like sitting back in a recliner)? Have you put cold wet towels or cold packs on it? How long has it been swollen? Can you walk on that leg?

I don't know of any link between a swollen knee and kidneys.