Numbness of the fingertips of the right hand may be caused by cervical spondylosis, diabetic peripheral neuropathy, cerebral infarction, carpal tunnel or elbow tunnel syndrome. 1. Cervical spondylosis: degenerative cervical spondylosis can pull or stimulate the surrounding blood vessels and nerves, which can lead to numbness of the fingertips of the right hand, and even cause numbness of both upper limbs in severe cases. 2. Diabetic peripheral neuropathy: this is one of the complications of diabetes, which can also cause numbness of the right fingertips, and even lead to sensory abnormalities in severe cases. 3. Cerebral infarction: patients with cerebral infarction can have the manifestation of current neurological deficit, which can cause numbness of one side of the fingertips or limbs, and even paralysis of limbs, slurred speech, dysphagia and other symptoms. 4. Carpal tunnel and elbow tube syndrome: due to the right wrist or elbow injury, compression of the median nerve, ulnar nerve, can lead to numbness of the right fingertips. In addition, cold weather posture is not appropriate, such as lifting heavy objects for a long time, mechanical compression may also cause numbness of the right fingertips, remove the causes can be improved by themselves. Numbness of the right fingertips may also be caused by other reasons, need to be combined with the patient’s symptoms, under the guidance of the doctor, improve the relevant examination to clarify the cause.