There are many reasons for hand numbness after eating, which are categorized into physiological and pathological reasons, and pathological reasons include orthopedic diseases and neurological diseases. 1. Physiological reasons: If you eat for a long time and keep a posture to hold chopsticks, this symptom will occur, which is a normal physiological phenomenon, without additional special treatment, relax your arm and rest properly can be relieved. 2. Pathological causes: if you suffer from orthopedic diseases, such as cervical spondylosis, carpal tunnel syndrome and other diseases, because of cervical spine displacement and inflammation stimulation caused by nerve compression, damage, resulting in numbness of the hand phenomenon; there are also neurological disorders, such as peripheral neuritis, because of the abnormalities of nerve conduction and the emergence of this symptom. If the hand numbness symptoms can not be recovered by themselves or accompanied by other symptoms, it is recommended to go to the hospital in a timely manner, to clarify the cause, under the guidance of the doctor targeted treatment.