Arms a little numb, there are many reasons, the most common reasons include long-term physical labor, cervical spine disease, cerebral infarction, elbow and wrist disease, trauma, etc., as follows: a. Long-term physical labor: patients engaged in heavy physical labor for a long time, resulting in local strain, will lead to a little numbness in the arms, need to pay attention to rest, protection, local hot compresses, with acupuncture, massage, etc., will slowly recover. Second, cervical spondylosis: common spinal cord type cervical spondylosis, neurogenic cervical spondylosis, will also lead to numbness in the arms. Third, cerebral infarction: cerebral infarction can lead to a little numbness in the arms of patients. Four, elbow and wrist disease: if the patient has elbow tunnel syndrome, carpal tunnel syndrome, etc., it will also lead to a little numbness in the arms. Fifth, trauma: If the patient’s arm is traumatized and causes nerve damage, it will also lead to numbness in the arm.