Possible causes of finger numbness and pain include cold, tenosynovitis, degenerative joint disease, cervical spondylosis and so on. 1. Cold: It may be due to cold hands, resulting in blood flow disorders, causing insufficient blood supply to the distal end and symptoms of numbness and pain in the fingers. 2. Tenosynovitis: The tendon sheath is a semicircular structure near the joints that surrounds the tendon tissue and serves to fix the tendon. When the hand joint activities, tendons and tendon sheaths will produce mutual friction, if the two friction is excessive will cause inflammation, resulting in tenosynovitis of the hand, numbness and pain in the fingers. 3. Degenerative joint lesions: the triggering factors of degenerative joint lesions include advanced age, joint instability, joint trauma, obesity, overweight, inflammation, bone cell metabolism abnormality and so on. When degenerative joint lesions, osteophytes compress the nerves, tendons or other structures around the fingers, it will cause numbness, pain and other symptoms. 4. Cervical spondylosis: it may be caused by cervical spondylosis, especially nerve root cervical spondylosis, due to the protruding intervertebral disc stimulation and compression of the nerve root, which will cause nerve conduction obstacles, causing numbness, pain in the fingers, and even upper limb weakness, as soon as possible to treat the cervical spondylosis, the numbness of the fingers will be relieved in a timely and effective manner. Finger numbness and pain may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.