My knee has been hurting when I run. When should I see a doctor?
Most athletes will experience some knee pain from time to time. Overuse, long training days or bumps and bruises from contact sports often result in minor knee pain that heals within a day or two with some rest and ice. But there are some clues that indicate more serious knee pain and injuries that may need to be seen by a doctor for a complete evaluation and treatment plan. You should see a doctor for your knee pain if you have any of the following warning signs: Pain that lasts more than 48 hours, swelling that lasts more than 48 hours, loss of range-of-motion in the joint, instability: feeling that the knee will give out, inability to put your full weight on the leg, or deformity of the knee joint.