Rheumatologists treat joint disease similar to orthopedists but do not perform surgeries and the common diseases treated by rheumatologists include osteoarthritis, gout, rheumatoid arthritis, chronic back pain, tendinitis etc.
Symptoms like joint pain, swelling, or abnormal blood test results.
Investigations like erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) etc are required.
Yes, they do treat an individual with a muscle pain.
Rheumatologists are specialists in arthritis and diseases that involve bones, muscles and joints and they are trained to treat all types of arthritis, especially those requiring complex treatment.