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By Mayo Clinic staffTo diagnose Achilles tendinitis, your doctor will examine your foot and may have an X-ray taken of the area to rule out other causes of your pain. He or she will also ask questions about your physical activity.
If your doctor suspects that your Achilles tendon has torn, he or she may order an MRI scan, a painless procedure that uses magnetic fields to create a computer image of the soft tissues of your body.