Tendinitis is an inflammation of the tendon. Tendinitis can be caused by a variety of factors, including infection, trauma, and overuse. It can cause pain, stiffness, and difficulty moving the joint.
The orthopedist is a doctor who specializes in the skeletal muscle system of the human body including bones, joints, ligaments, tendons, muscles and nerves.
The rheumatologist is the doctor who specializes in the diagnosis and treatment of diseases that affect the joints, muscles, tendons and bones.
Remember that for the proper selection of health professional that treats tendinitis you must consider the nature, severity and symptoms you are presenting.