My knee stiffens up after sitting for a short period of time.
My knee feels a little better after walking a few steps.
My knee looks swollen and red.
I have had gout.
My knee feels unusually hot to the touch.
I have had other hot, swollen or red joints.
I am having fevers, unexplained weight loss or shaking chills.
The pain is better when I sit or lie down.
I had a fall or twisting knee injury before the pain started.
I heard or felt a loud pop in my knee right before the pain started.
The knee swelled up immediately after an injury.
I feel a catching, locking or clicking sensation in my knee.
Most of the pain is on the outside (lateral) part of my knee.
There is a snapping sound or sensation on the side of my knee.
My knee has buckled or given out without warning.
The pain started suddenly.
The front of the knee over the kneecap is red, swollen or tender.
I have pain below the kneecap area when I walk up stairs.
I participate in vigorous athletic activities (such as running, cycling or kicking sports).
I have had psoriasis (red, flaky rash, often seen on elbows, knees or scalp)
The inner side of my knee is tender below the joint when I push on it.
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