The common causes of right hand writing weakness are cervical spondylosis and cerebrovascular disease. Patients with cervical spondylosis often have a history of heavy physical labor or prolonged ambulatory work, which is aggravated after exertion and alleviated after rest, and patients often have symptoms such as discomfort in the back of the neck, soreness and dizziness in the shoulders. In addition to the above-mentioned manifestations, patients may also have asymmetrical muscles of both upper limbs and atrophy of the large interphalangeal muscles. Electromyography may suggest neurogenic lesions, and magnetic resonance examination of the cervical spine suggests intervertebral foraminal stenosis. Cerebrovascular disease is divided into acute cerebral infarction and cerebral hemorrhage, with previous history of hypertension, diabetes mellitus and hyperlipidemia. The cause of cerebrovascular disease is a neurological emergency, and the patient should call 120 to seek medical attention in time for the above symptoms.