The main sign of muscular dystrophy is progressive muscle weakness. Myotonic muscular dystrophy is the most common form of adult-onset.
The digestive tract and uterus (womb) often are affected in type 1 myotonic dystrophy. Also, symptoms such as colicky abdominal pain, bloating, constipation .
Myotonic dystrophy (DM) is a genetic disorder characterized by both progressive muscle wasting and stiffness, or an inability to relax muscles at will. There are two types of myotonic dystrophy, DM1 and DM2, based on the underlying genetic mutation — expansions of repeated areas.