1. Normal children walk independently at the age of 1 year after birth. Children with children may start walking independently at the age of 1 and a half to 2 years old, or may walk unsteadily all the time. They are often mistaken for calcium deficiency or weak constitution and other reasons. ignore.

2. As the child grows older, the symptoms gradually become more obvious. It is often found after entering day care that the child's motor ability is worse than that of children of the same age, his movements are uncoordinated and clumsy, and he cannot keep up with children of the same age when running. Children with muscular dystrophy gradually develop abnormal gait, walking with a swaying motion, commonly known as duck gait, and have difficulty going upstairs and squatting down.

3. Most children with muscular dystrophy gradually develop symptoms when they are 3-5 years old, and most are asymptomatic during infancy and early childhood. Some careful parents may find that children with muscular dystrophy actually have slightly slower motor development than children of the same age since childhood. behind.