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How do you know if you have a knee injury?

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Quick Answer

Symptoms of a knee injury often include pain, swelling and redness, along with the inability to walk without limping or the inability to bend or extend the knee, explains MedicineNet. People should seek medical attention if the pain worsens, especially when standing or walking or if the swelling and redness persists for more than two days, advises WebMD.

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While most minor knee injuries heal within three weeks without professional care, injuries such as a torn knee muscle or torn cartilage, require medical attention to heal properly, states Everyday Health. However, minor knee injuries can cause an infection. Symptoms of an infection may include fever, nausea or a warm sensation around the injury.

Treatment options for minor knee injuries include rest, ice, compression and elevation, along with over-the-counter pain medications, according to Everyday Health. Knee fractures and dislocated knees may require physical therapy, corticosteroid injections, acupuncture or surgery to correct.

Medical conditions that cause knee pain include rheumatoid arthritis, gout, osteoarthritis and patellar tendinitis, notes MedicineNet. Repetitive motion and obesity can also cause knee pain and injury. Radiologic tests such as an X-ray or MRI help physicians diagnose knee injuries, while blood tests and joint fluid tests help to determine the medical conditions associated with knee pain.

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