Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Osteoarthritis ?
    ### Response:
    No single test can diagnose osteoarthritis. When a person feels pain in his or her joints, it may or may not be osteoarthritis. The doctor will use a combination of tests to try to determine if osteoarthritis is causing the symptoms. These may include a medical history, a physical examination, x-rays, and laboratory tests.
    