Muscle atrophy refers to rhabdomyodystrophy, muscle volume is smaller than that of normal people, and muscle fibers become thinner or even disappear. Hypertrophy of neuromuscular diseases. The nutritional status of muscle is closely related to the nervous system besides the pathological changes of muscle tissue itself. Spinal cord diseases often lead to muscular dystrophy and muscular atrophy.

Classification of muscular atrophy

1. Classification according to pathogenesis

(1) Muscle atrophy caused by general malnutrition, disuse and endocrine abnormality.

(2) Muscle atrophy caused by heredity, poisoning, abnormal metabolism, infection and allergic reaction. This classification is of little clinical significance, because the cause is difficult to be clear at the moment.

2. According to the distribution of muscle atrophy:

(1) diffuse muscular atrophy; (2) Muscle atrophy of head and face;

(3) Muscle atrophy of head and upper limbs or proximal limbs; (4) Muscle atrophy at the distal end of upper and lower limbs;

(5) localized muscular atrophy