Numbness of the fingers may be caused by improper posture, or it may be an early cause of neck disease or cerebrovascular disease, but it is often not a sign of any disease. 1. Improper posture: If you keep the same posture for a long time, such as sleeping or holding a cell phone, etc., the superficial nerves of the hand will be compressed, which will lead to numbness of the fingers. 2. Neck disease: when the patient suffers from cervical disc herniation, cervical spondylosis, etc., resulting in cervical nerve root compression, which leads to numbness in the patient’s hands. 3. Cerebrovascular diseases: If cerebral infarction or transient ischemia occurs, the nervous system will be affected and numbness of fingers will occur. If the symptoms persist for a long time, it is recommended that the patient go to the regular hospital in time, under the diagnosis of the doctor, according to the patient’s specific condition, to take targeted treatment.