I have pain in my knee after sitting for a while?

Let us try to help. The main symptom associated with osteoarthritis is stiff and painful joints. Most sufferers find that the stiffness is the worst in the morning, and severe stiffness will last less than 30 minutes. Moving the joint repeatedly can often help to alleviate the stiffness. Please check it out.Good luck, thanks.
Possible Arthritis. After sitting for a while, if your knees are stiff and sore when you get up, it's probably arthritis. It's a symptom commonly refered to as "gel phenomenon" - it feels like your knees set, or "gel" if you sit still too long.