Patients with diabetes should be analyzed if they develop numbness in the fingers. The specific situation is as follows: 1. Diabetes is a chronic disease, the disease for a long time will lead to the emergence of chronic complications, which will appear diabetic peripheral neuropathy, with the performance of numbness in the fingers. Some patients have numbness in two fingers, and some have numbness in one finger first, followed by numbness in the other finger. If numbness occurs at the peripheral extremities such as fingers and toes, patients are advised to undergo electromyography to identify whether it is diabetic peripheral neuropathy. If it is clear that it is caused by diabetes, timely treatment is needed, including blood sugar control, nerve nutrition and other treatments; 2. If the numbness is unilateral in the fingers, such as numbness on the inner pinky and ring finger side of the fingers, it can be considered cervical spondylosis. Because cervical spondylosis usually causes nerve compression on one side, thus causing numbness in the unilateral innervated fingers; 3, joint lesions, such as wrist and elbow joint lesions can also lead to numbness at the extremities, sometimes a long time on the phone with a cell phone, or sleep at night when the local hand is compressed, can also lead to numbness in the fingers; 4, carpal tunnel syndrome caused by trauma can also lead to numbness in the fingers. Therefore, the numbness of the fingertips should be analyzed comprehensively, and the most common cause is diabetic peripheral neuropathy.