Rheumatic And Musculoskeletal is a type of diseases in which the basic internal structure of the body gets affected and some of the symptoms are redness or heat, swelling, and pain in the body parts like joints, tendons, ligaments, bones, and muscles, till now more than 100 types of Rheumatic disease has been discovered.
To know more about it :- http://www.niams.nih.gov/Health_Info/Arthritis/arthritis_rheumatic_qa.asp