Person who, as a medical specialist, diagnoses and treats rheumatic diseases (arthritis, osteoarthritis, tendonitis, bursitis, gout, lumbago, etc.) which cause acute or chronic pain in the joints, muscles, tendons and adjacent tissues . To this end, she uses examinations, x-rays and laboratory tests, makes a diagnosis and prescribes an appropriate treatment (surgery, physiotherapy, exercises, drugs, diet, etc.) to relieve pain, restore or improve symptoms. motor functions or even control the evolution of degenerative diseases such as arthritis. She periodically follows up with her patients with chronic conditions to reassess their condition and adapt their treatment accordingly.