What does the medical abbreviation MS mean?

Answer 1

Multiple sclerosis (abbreviated MS, also known as disseminated sclerosis or encephalomyelitis disseminata) is an idiopathic disease of suspected autoimmune cause, in which the body's immune response attacks a person's central nervous system (brain and spinal cord), leading to demyelination.[1] Disease onset usually occurs in young adults, and it is more common in females. In other medical contexts, MS may mean musculoskeletal.
Multiple sclerosis, musculoskeletal, or master's in science, depending on the context.