Evaluating Kneecap (Patella) Problems You can find out what is causing your knee pain by having a thorough evaluation. You may see an orthopaedist (a doctor who specializes in treating bone, muscle, and joint problems). Your doctor will work with you to find the cause of your knee pain and design a treatment plan for you. "Tell Me Where It Hurts" Mark an "X" where you feel pain. Mark an "O" where you feel slight discomfort. Then show this "pain map" to your doctor. Taking Your Medical History Your medical history gives your doctor clues about the cause of your knee pain. It helps your doctor set goals for your treatment. You'll be asked about your pain and which activities make it worse. Your doctor will also ask about prior knee problems. Examining Your Knee A physical exam helps your doctor locate your specific knee problem. Your doctor will look at and move your knee to find signs of swelling or tenderness. Then he or she will check to see how well your kneecap tracks. Other tests of knee function may also be done. Performing Tests Diagnostic tests may help your doctor learn more about your knee problem. X-rays show the alignment and position of your bones, including your kneecap. A CT (computed tomography) scan can show more alignment details. An MRI (magnetic resonance imaging) can show bone, cartilage, ligament, or muscle problems. Arthroscopy uses a tiny camera to let your doctor see inside your knee joint. This diagnostic procedure may be done under general or local anesthesia.