The diagnosis of arthritis is made by a combination of a physical examination, medical history, laboratory tests, and imaging tests.
Physical Examination
During a physical exam, your doctor will check for swelling, warmth, and tenderness in your joints. He or she will also check your range of motion and look for any deformities in your joints.
Medical History
Your doctor will ask you about your past medical history, including any previous joint problems or injuries. He or she will also ask about your family history of arthritis and any other illnesses.
Laboratory Tests
Your doctor may order laboratory tests, such as a complete blood count and erythrocyte sedimentation rate (ESR). These tests can help rule out other conditions, such as infections or anemia.
Imaging Tests
Imaging tests, such as X-rays, ultrasound, and MRI, can help your doctor diagnose arthritis. These tests can show any damage to the joint, such as bone spurs or joint erosion.