Hand numbness can be distinguished from cervical spondylosis or cerebral infarction according to clinical manifestations, accompanying manifestations and auxiliary examination results.
1. Clinical manifestations: hand numbness caused by cervical spondylosis is due to the compression of sensory nerve roots of the upper limbs, which is manifested as band-like or cord-like numbness distributed along the nerve roots, not accompanied by numbness in other parts of the body; cerebral infarction damages the high sensory nerves and their sensory nerve conduction bundles, causing partial sensory disorders, leading to numbness in the opposite side of the half-body, and most of the time, it is not just numbness of the hand.
2. Accompanying manifestations: hand numbness caused by cervical spondylosis is sometimes heavy and sometimes light, accompanied by dizziness, and dizziness is related to the rotation of the neck, accompanied by swelling of the hands, shoulder and back pain; hand numbness caused by cerebral infarction is often accompanied by dizziness, weakness of the limbs, facial paralysis, salivation (drooling), speech impediment and so on, and the dizziness is unrelated to the rotation of the neck.
3. Auxiliary examination: magnetic resonance imaging (MRI) suggests that cervical intervertebral disc degeneration is often considered to be caused by cervical spondylosis; brain MRI suggests that there is a cerebral infarction foci, and if there are numbness in the hands recently, cerebral infarction is generally considered.
If there is numbness of the arm or fingers, it is recommended to consult a regular hospital to clarify the cause of the disease and timely treatment, so as not to delay the condition.