The reasons for waking up with numbness in the left hand include pressure on the left hand, neurogenic cervical spondylosis, cerebral infarction, diabetes and so on.
1. Left hand compression: if the patient sleeps in an inappropriate position at night, the left hand is compressed and the brain tissue becomes ischemic and hypoxic, which is manifested as the numbness of the left hand when waking up from sleep.
2. Neurogenic cervical spondylosis: If the position of the pillow is too high at night and the neck is pulled for a long time, it may induce neurogenic cervical spondylosis. This disease is mainly caused by nerve root compression, the onset of the left hand numbness symptoms. Diagnosis is aided by cervical spine CT or MRI.
3. Cerebral infarction: if the patient has a history of cerebral atherosclerosis, blood vessel narrowing, due to the slow metabolism of the body slow blood flow at night, it is easy to re-emerge cerebral infarction, resulting in waking up with numbness in the left hand. Combined with head CT or MRI and other tests to assist in the diagnosis.
4. Diabetes mellitus: If the patient has a history of diabetes mellitus, poor blood glucose control, peripheral nerve function is impaired, may appear to wake up left hand numbness.
Wake up left hand numbness may have other causes, it is recommended that the patient as soon as possible to seek medical advice, under the guidance of a professional physician combined with the patient’s condition, signs and auxiliary examination to determine the cause and give targeted treatment.