Steinert Disease, also known as myotonic dystrophy type 1, is a genetic disorder that affects the muscles and several other organ systems. As a progressive condition, it often leads to muscle weakness, muscle wasting, and delayed muscle relaxation after contraction. Although it is commonly referred to as Steinert Disease, it also has several synonyms in medical literature, such as myotonic dystrophy, dystrophia myotonica, DM1, or DM. These alternative names serve to facilitate discussion and research, making it easier for medical professionals and researchers to communicate effectively when studying or treating this debilitating disease.