What causes numbness in the left hand when lying down?

Left hand numbness when lying down is generally caused by poor posture, carpal tunnel syndrome, diabetic peripheral neuropathy, transient ischemic attack, or other reasons. Patients may take medications as directed by a physician. Specific details are as follows:

1. Poor posture: Maintaining the same sleeping position for prolonged periods may gradually compress nerves in the upper limbs, leading to numbness in the arm. This condition typically resolves after adjusting sleeping posture.

2. Carpal tunnel syndrome: This is usually caused by overuse of the wrist area or compression of the median nerve. Main symptoms include numbness and tingling sensations in the palm and wrist. Medications such as ibuprofen sustained-release capsules or nimesulide dispersible tablets may be taken as prescribed by a doctor.

3. Diabetic peripheral neuropathy: Poor blood glucose control leads to peripheral nerve damage, commonly manifesting in the hands with symptoms of tingling and numbness in fingers and hands. It is recommended that patients take medications such as mecobalamin tablets or alpha-lipoic acid capsules under medical guidance.

4. Transient ischemic attack (TIA): Often caused by vascular lesions, unstable blood pressure, or similar factors, it commonly presents as unilateral body numbness, visual disturbances, or temporary blindness. Patients may take medications such as clopidogrel aspirin tablets or enteric-coated aspirin tablets under a doctor's supervision.