Numbness of the hand while eating may be caused by carpal tunnel syndrome, elbow tunnel syndrome, cervical spondylosis and other reasons. 1. Carpal tunnel syndrome: Symptoms induced by pressure on the narrow carpal tunnel when the median nerve, which innervates sensation on the palm side of the hand, passes through the wrist. Numbness or pain is often felt in all three fingers, and is most severe in the middle finger. Symptoms are obvious when the wrist is exerted and can be relieved by shaking the wrist appropriately. 2. Elbow Canal Syndrome: The ulnar nerve is compressed due to elbow lesions, resulting in numbness and discomfort in the abdomen of the little finger, muscle atrophy and weakness. If the posture is bad when eating, the elbow joint will be over-flexed for a long time, which will lead to numbness of the hand. 2. Cervical spondylosis: prolonged work at the desk may lead to herniated discs in the neck causing nerve root compression. It may lead to blood circulation, which may cause the arm to move when eating, and pressure on the nerves causing numbness in the hand. If you find a numbness of the hand during meals, it is recommended to consult a doctor in time to identify the cause of the disease and standardize the treatment under the guidance of a professional physician.