Muscular atrophy is a very serious orthopedic disease. Patients' muscles will gradually lose their proper functions, which will bring great adverse effects to patients' normal life. In severe cases, they may need to stay in bed for a long time, which will do great harm to patients. The obvious symptoms of muscular atrophy are general. The obvious symptoms of muscular atrophy are: muscular atrophy is mainly caused by unilateral sternocleidomastoid muscular atrophy combined with trapezium muscular atrophy, bilateral sternocleidomastoid muscular atrophy, accompanied by systemic muscular atrophy, difficulty in starting, premature baldness and gonadal atrophy. One latissimus dorsi atrophy, the symptoms of muscle atrophy may not be accompanied by ipsilateral triceps atrophy, but there is local skin sensation loss. One pectoralis major muscle atrophy, without other muscle and nervous system symptoms. Symptoms of muscular atrophy can include unilateral triangular muscular atrophy, inability or weakness of shoulder abduction, tenderness under the armpit without other muscular atrophy, bilateral scapular muscular atrophy with acute history, and no abnormal sensation and local tenderness. At the initial stage, the main symptoms of muscular atrophy are slow onset and progressive facial muscular atrophy with tight eyes, inability to drum cheeks or whistle, muscular atrophy of the humerus, and wing-like protrusion of the scapula when the upper limbs raise their hands, and no abnormal sensation. The symptoms of muscular atrophy are localized unilateral temporalis muscle and masticatory muscle atrophy, and the mandible leans to the affected side when opening the mouth. Patients with muscular atrophy may be accompanied by facial sensation and corneal reflex loss or disappearance. In adolescents, lingual muscular atrophy coexists with dysphagia and dysarthria. The above is the obvious symptom of muscle atrophy, I hope it will help everyone.