Term Name:	secondary progressive multiple sclerosis
Synonyms:	Secondary-progressive MS, SPMS
Definition:	A multiple sclerosis that is characterized by a worsening of disability, rather than by relapses followed by recovery, which progressively worsens until a steady progression of disability replaces the cycles of attacks.
Ontology:	Human Disease [DOID:0050783]   ( DOID:0050783 )