What causes lateral numbness, edema in pain in knee?

Internal. derangement of the knee joint including cartilage teats of the ACL, PCL, lateral ligament or infrapatellar tendinitis. Trauma can also cause effusion or hemarthrosis ( blood in the knee joint ). No matter what you must be examined and x-rayed, probably will need an MRI or a diagnostic aspiration of the joint fluid. Call for an orthopedic consultation asap.

Related Questions

I'm getting numbness on out side of my left leg just up from knee and pain in knee and bottom half of leg has started to feel hot?

Any injury? This sounds a bit suspicious for blood clot, though not at all typical. If you have been traveling, sitting for prolonged period of time or have been injured, better get checked out. Read more...

Hi my wife is 37years old, she has knee pain & she is finding very difficult to sit down or bent. She has numbness in her hand. What is the remedy?

Not so simple . It sounds like there may be more than one process in play. The knee pain sounds more like a local issue with either injury to the knee or local arthritis. The numbness in the hand could be carpal tunnel syndrome or many other possibilities. Medical attention needed to more fully evaluate the cause or causes of her symptoms. Read more...
She need s to be -- Seen by her pcp (gp) or an orthopod, to check both the knee and numb hand issues. Good luck. Read more...