4hw.com.cn: in daily life, it is believed that no matter young people or middle-aged and old people, there have been cases of hand numbness, some of which are still staged. People will not pay attention to hand numbness, but there are often serious hidden dangers, so what are the causes of young hand numbness? Let's have a look!
There are many cases of hand numbness: some people wake up in the middle of the night; some people wake up in the morning with their hands stiff and numb; some people carry heavy things for a long time with their hands numb and weak. Some people are numb all day, some people are numb in the whole palm, some people are numb in one or two fingers.
When we sit for a long time or the posture of sitting is not good, it will cause numbness of the lower limbs. When the posture of the hand is not right, it will also numb. A relaxation is like ten million ants crawling. Because when the blood vessels are compressed, the blood vessels supply the limbs with partial ischemia, causing numbness. When the pressure is relieved and the blood flows, it feels like there are many ants crawling. When the ulnar artery and radial artery of the upper extremity are pressed at a certain place, hand anesthesia will be caused.
Hand numbness may be one of these factors:
1. Nerve factor: there is axoplasmic flow in the nerve. When the nerve is compressed, the axoplasmic flow is blocked, which may also cause hand anesthesia.
To the palm, there are mainly radial nerve, ulnar nerve and median nerve. These nerves start from the cervical spinal canal, pass through joints, ligaments and bone fiber tubes to the end of the palm. In any part, when the nerve is compressed, it will cause hand anesthesia.
2. Systemic factors: high blood fat: long term high blood fat, easy to cause hardening of blood vessel wall, plus high blood fat, blood viscosity, slow blood rheology, reduced oxygen nutrients obtained by cells, resulting in numbness. Diabetic patients: the blood sugar is maintained at a high level. In the past, it has caused great damage to human blood vessels and nerves, vascular sclerosis and neurodegeneration.
3. Hand numbness caused by cervical vertebra: the cervical nerve has intervertebral foramen, and is divided into two branches: the anterior branch: it moves to the lower and outer side, and reaches to the forearm, forming the ulnar nerve, radial nerve, median nerve, etc. Posterior branch: the muscle around the posterior joint of the cervical spine to the rear, distributed at the back of the cervical spine. No matter the anterior branch or the posterior branch of the skin is compressed, it will cause hand numbness.
4. Brain factor: all nerves come from the brain when something goes wrong. If apoplectic, place of control of cerebrum can appear numb, limp.
All of the above are the causes of hand numbness. If there is frequent hand numbness, you should go to the hospital in time to check it, so as not to delay the illness and cause serious consequences.