Hand numbness at night may be physiological factors, may also be the manifestation of certain diseases, such as cervical spondylosis, upper extremity nerve entrapment, diabetic peripheral neuropathy and other causes.
1. Physiological factors: poor sleeping posture may lead to insufficient local blood supply, such as sleeping on the side of the habit, the head for a long time pressed to the hand or arm, resulting in poor peripheral blood flow. Maintenance time is generally not very long, without special treatment, through the hand activities to relax the way, a short period of time that can be relieved.
2. Cervical spondylosis: hand numbness caused by cervical spondylosis, especially nerve root cervical spondylosis, nerve compression, nerve compression is blocked by insufficient local blood supply, and numbness.
3. Upper limb nerve compression: such as carpal tunnel syndrome is the thumb, index, middle finger nerve compression, resulting in local blood circulation obstruction will appear local numbness and pain, mainly in the clinic to the median nerve compression in the wrist; or elbow tube syndrome, the finger nerve in the elbow by the compression, resulting in local blood circulation obstruction, the main manifestation of numbness and pain in the ring, little finger.
4. Diabetic peripheral neuropathy: the onset is often symmetrical, mainly due to the long duration of the disease, affecting the peripheral neurovascular, peripheral neurovascular blood circulation is blocked, and then appear local numbness, such as bilateral numbness of the fingers.
Hand numbness at night, such as frequent episodes, it is recommended to consult a doctor in a timely manner, ask the doctor to clarify the cause of the disease, to give targeted treatment, so as to avoid delays in the condition.