by Arthritis consists of more than 100 different condition which range from relatively mild forms of tendinitis and bursitis to crippling systemic forms, such as rheumatoid arthritis. It includes pain syndromes such as fibromyalgia and arthritis-related disorders, such as systemic lupus erythematosus, that involve every part of the body. Other forms of the disease, such as gout, are almost never thought of as arthritis, while osteoarthritis is often thought to be the only form of this disease.
