(HealthDay News) -- Injuries to the knee -- the body's largest joint -- lead to more than 19 million visits to the doctor each year, the American Academy of Orthopaedic Surgeons says.
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While not all knee injuries are serious, the academy says these warning signs should prompt a trip to the doctor:
- Your knee made a popping sound and feels like it "gave out" when you hurt it.
- You have significant pain in the knee.
- You are unable to move the knee.
- You limp when you walk.
- Your knee is swollen.
-- Diana Kohnle
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