Inflammatory myopathies are a group of diseases that affect the muscles and cause inflammation. There are several synonyms for this term that refer to specific types of inflammatory myopathies. For example, dermatomyositis is characterized by muscle weakness and skin rash, while polymyositis is primarily a muscle disease with no associated skin rash. Inclusion body myositis is a rare type of inflammatory myopathy that affects older adults and may involve the accumulation of abnormal proteins within the muscle cells. Finally, necrotizing myopathy is a subgroup of inflammatory myopathies that involves muscle damage due to immune system attack. Regardless of the specific type, inflammatory myopathies can have a significant impact on a person's quality of life and require timely treatment and management.