Wrist swelling and numbness can be seen in physiological reasons such as local cold or overwork, but also may be caused by disease factors such as carpal tunnel syndrome, local trauma, cervical spondylosis, diabetes mellitus and so on. The details are as follows: 1. Physiological reasons: normal healthy people in the local cold or overworked wrist can appear local edema, ischemia, thus appearing a transient wrist swelling phenomenon. 2. Carpal tunnel syndrome: generally due to local trauma (fracture, dislocation, wrist sprain and contusion, etc.), local mass (lipoma, tendon sheath cysts, etc.) and other reasons leading to a reduction in the volume of the carpal tunnel, extrusion of the median nerve and friction with the tendon, which can appear in the wrist distension and numbness of the symptom; but generally accompanied by a reduction in the wrist muscle strength, pain and other symptoms. 3. Local trauma: when the joints in the wrist are locally damaged, tendons, muscles are strained, fractures and so on, local oedema and blood circulation obstacles can occur, resulting in local swelling and numbness and other symptoms. 4. Cervical spondylosis: If there is cervical spondylosis, especially neurogenic cervical spondylosis, the diseased cervical intervertebral discs can compress the nerve roots, which leads to radioactive swelling and numbness in the upper limbs. 5. Diabetes: diabetic patients with long-term repeated blood sugar control instability, can lead to peripheral neuropathy, wrist joints are no exception, when the wrist joints at the local nerve lesions, can be manifested as a local distension and numbness of the symptoms. Such as wrist numbness need to consult a doctor in a timely manner, in accordance with the doctor’s instructions to improve the relevant examination, clear cause, under the guidance of the doctor to give targeted treatment to avoid aggravation of the condition.