The numbness of the middle 3 fingers of the right hand is mostly considered to be caused by physiology, cervical spine lesion, insufficient blood supply to the brain, neuritis, etc. 1. Physiological: long hours of work, or incorrect sleeping posture pressure on the right hand, etc., may appear in the middle of the right hand three fingers numbness. 2. Cervical spine lesions: cervical disc herniation will compress the local nerve roots, which may cause numbness in the middle 3 fingers of the right hand. 3. Insufficient blood supply to the brain: atherosclerosis of cerebral arteries or cerebral infarction will lead to narrowing of blood vessels, which will reduce the blood volume of brain tissues and lead to insufficient blood supply to the brain. As a result, the patients will have numbness in the middle three fingers of the right hand as well as dizziness and headache. 4. Neuritis: finger peripheral nerves due to trauma and infection, lack of vitamin B, finger blood supply disorders or diabetes, etc., will cause peripheral neuritis, and then appear right hand middle three fingers numbness, pain and other symptoms. 5. Carpal tunnel syndrome: patients first feel numbness or pain in the radial side of the three finger tips, holding objects weak, to the middle finger for more, night or early morning symptoms are the most serious, appropriate shaking of the wrist can be reduced. The numbness of the middle three fingers of the right hand may also be caused by other factors, it is recommended that the patient consult a doctor in a timely manner to clarify the cause, under the guidance of the doctor targeted treatment.