Sleeping arm numbness may be caused by physiological factors, but also may be, for example, cervical spondylosis, elbow-tube syndrome, cerebrovascular disease and other disease factors.
1. Physiological factors: sleeping due to poor posture caused by prolonged pressure on the arm, affecting the local blood circulation, resulting in numbness, change position, appropriate activities can be improved.
2. Disease factors
(1) Cervical spondylosis: cervical spondylotic hyperplasia or herniated intervertebral discs compressing the nerve root can appear numbness of the arm, due to sleeping pillow is too high or poor posture of the head caused by nerve compression aggravation, numbness occurs.
(2) Elbow Canal Syndrome: It refers to the progressive damage of the ulnar nerve in the elbow canal due to the pressure or stretching of the ulnar nerve in the elbow canal, which causes muscle atrophy and weakness of the hand and numbness of the ulnar side as the main manifestation of the ulnar nerve. If the elbow is flexed when sleeping, the pressure on the ulnar nerve can be aggravated, resulting in numbness on the ulnar side of the arm.
(3) cerebrovascular disease: cerebrovascular disease can occur at night, such as acute cerebral infarction at night, and affect the spinal cord thalamus bundle, there can be sensory disorders, which can be manifested as a side of the arm numbness symptoms.
Sleeping arm numbness should be taken seriously, except physiological factors need to go to the hospital in time for examination and treatment.