The common reasons for maternal hand numbness after childbirth are as follows: 1, local muscle spasm: maternal in the production process to maintain the same posture for a long time, and trigger local muscle spasm, jamming the corresponding nerve, resulting in hand numbness; 2, the recurrence of the original disease: maternal in the postpartum physique is relatively weak, resulting in the recurrence of the original disease, such as cervical spondylosis, cervical disc herniation, small joint misalignment, jamming the nerve leading to the arm, resulting in inflammation and damage to the nerve, can produce hand numbness symptoms; 3, cold: maternal in the postpartum physique is relatively weak, and the physique is relatively weak, appearing cold, cold, triggering poor blood circulation in the arm, will produce hand numbness symptoms.