Donald Zoltan, M.D. - Gout is diagnosed by seeing crystals in the joint fluid. If you have gout, it isn't related to your running activity. It is best treated with specific medications for this condition. In general, whenever there is swelling of the knee, you shouldn't return to running until all the swelling is resolved, and there is full motion and return of strength. Donald Zoltan, M.D. - You likely have chondromalacia, which is irritation of the underside of the kneecap.
Arthritis is also a possibility.
In all likelihood, it is not a serious problem. M.D. - In general, collateral ligament injuries do not have to be surgically repaired. They heal well on their own and with brief immobilization and physical therapy, people can return to their normal activities. Donald Zoltan, M.D. - Men's knees are different than women's knees. There may also be some hormonal factors that weaken the ligaments.