Numbness in the fingers is a very common phenomenon in life, most people do not pay attention to, think that numbness in the fingers is no big deal, numbness after a while on the good. In fact, behind the regular numbness of the hand may be hidden behind a huge thing, do not take it seriously, should cause enough vigilance. So what is hidden behind the numbness of the fingers? A, cervical spondylosis Cervical spondylosis is currently a relatively common chronic disease. It may be because of long-term sedentary reluctance to move, abnormal neck posture, especially the computer phone application time is too long, so that the cervical disc degeneration, resulting in cervical disc protrusion or joint protrusion hyperplasia or hypertrophy, these protruding cervical disc or hyperplasia of the joint protrusion once the adjacent cervical nerve root compression, there will be a finger numbness, of course, cervical spondylosis in addition to finger numbness, abnormal sensation, but also accompanied by Other symptoms, such as chest tightness, chest pain or activity disorder, etc. If there is sudden numbness on one side of the hand, and if it is accompanied by numbness on the same side or lower limb, you need to be highly alert to stroke. In addition to numbness of the limbs, stroke can also present symptoms such as slurred speech, weakness of the limbs, difficulty in lifting, and crookedness of the corners of the mouth. Of course, stroke can also be manifested simply as numbness of the limbs. If a sudden numbness in the hands is suspected, it is necessary to go to the hospital as soon as possible to have a head CT or MRI examination to understand whether there is brain hemorrhage, cerebral infarction and other acute cerebrovascular diseases, and to have timely treatment. Third, diabetes because diabetes patients maintain a high level of blood sugar, a long time, the human blood vessels, nerves caused great damage, can produce a variety of complications. For example, diabetic peripheral neuropathy, patients will have symptoms such as numbness and abnormal sensation in the hands and feet. When the above symptoms occur, it is recommended to check blood sugar to clarify the diagnosis. When patients have symptoms of numbness in the arms and fingers, it is likely that they are already ill, and this is never a matter of precursors, and they should not wait passively or take chances. In these three common diseases, even the cervical spondylosis, which is considered to be the lightest, may induce cardiovascular and cerebrovascular diseases with the passage of time. Therefore, once patients persist in hand numbness symptoms, they should promptly go to a local hospital for diagnosis and scientific and reasonable treatment.