Numbness of the ring finger needs to be alert to cervical spondylosis, cerebrovascular accident, myocardial infarction, diabetes mellitus, etc., and should consult a doctor in time to make a clear diagnosis. 1. Cervical spondylosis caused by cervical disc herniation can lead to numbness of the ring finger when the brachial plexus nerve is compressed. It can also be accompanied by the feeling of feet on cotton, dizziness, blurred vision and other discomforts. 2. Cerebrovascular accidents, such as acute cerebral infarction, cause corresponding neurological dysfunction, which can lead to numbness of the ring finger, accompanied by dizziness, tinnitus, unsteadiness and hemiplegia. 3. The special type of acute myocardial infarction can also be numbness of the ring finger, mainly distal ischemia, neurological dysfunction, severe cases can be accompanied by severe chest pain, and have a sense of imminent death. 4. Diabetes mellitus caused by vegetative nerve dysfunction, vascular endings spasm caused by hand numbness. Ring finger numbness of a variety of causes, including elbow syndrome, if not actively treated, can cause serious consequences, life-threatening, once found should be timely medical treatment.