We often hear that someone because of hand numbness, to the hospital diagnosis of cervical spondylosis, in fact, there are many reasons for hand numbness, not only cervical spondylosis only have this symptom, now to introduce you to the common hand numbness of the disease, I hope that once the phenomenon of hand numbness is found, it is recommended to pay sufficient attention to the best hospital to see a specialist to analyze the specific causes of the disease, a clear diagnosis, in order to get timely and accurate treatment. First, the common symptoms of hand numbness: some people wake up in the middle of the night hand numbness; some people wake up in the morning palm stiffness, numbness, after a while, some people carry heavy objects for a long time then hand numbness, palm weakness. Some people hold a bowl, a while numb and weak, can no longer hold. Some people have numbness all day long. Some people have numbness in the whole palm of their hands. Some people have numbness in one or two fingers. Numbness in the hand is a symptom, if it affects daily life, it is very inconvenient; go to the doctor immediately; if it does not affect life, but can not be taken lightly, it is often the precursor of some diseases. Especially the brain problems. Second, what is the cause of hand numbness? 1, vascular factors: when we sit for a long time or sit in a bad posture, will cause numbness in the lower limbs, when the hand is not the right posture will also be numb, a relaxation, such as millions of ants crawling.) Because when the blood vessel is compressed, the blood vessel supplies the limb part of the ischemia, causing numbness, and so on a moment to lift the compression, blood flow over, it feels like there are many ants crawling. When the ulnar artery of the upper limb, radial artery tube in a place of pressure, will cause hand numbness. 2, nerve factors: nerve axial pulp flow, when the nerve is compressed, the axial pulp flow is impeded, will also cause hand numbness. To the palm of the hand mainly radial nerve, ulnar nerve, median nerve, these nerves from the cervical spinal canal, through the joints, ligaments, bone fiber tube to reach the end of the palm, in any part, the nerve is compressed, will cause numbness in the hand. 3, the brain factor: all nerves are derived from the brain, when the brain problems. Such as a stroke, the brain will be dominated by the area of numbness, weakness. 4, systemic factors: some systemic diseases such as: A. Lipid overload: long-term lipid overload, easy to cause hardening of the blood vessel wall, coupled with high blood lipid, blood viscosity, blood flow becomes slower, the cells get less oxygen nutrients, resulting in numbness. Third, the cervical spine caused by hand numbness cervical nerve has intervertebral foramen out, divided into two branches: the front branch: towards the lower side of the outer, all the way to the forearm, forming the ulnar nerve, radial nerve, median nerve, etc.. Posterior branch: It goes around the posterior joint of the cervical spine to the posterior side and is distributed in the muscles behind the cervical spine, and if the skin is compressed by either the anterior branch or the posterior branch, it will cause numbness in the hands.