1, cervical spondylosis, the proportion of hand numbness caused by cervical nerve compression can be as high as 70%, which is the most common disease causing hand numbness, and most of them are accompanied by symptoms such as joint hyperplasia or ligament calcification, as well as neck and shoulder muscle pain, and even vomiting, dizziness, tinnitus and other symptoms.

2, lumbar disc herniation, patients with lumbar disc herniation often show repeated numbness in both lower limbs, numbness in one or both sides of thighs, calves and feet, accompanied by discomfort such as low back pain.

3, carpal tunnel syndrome Carpal tunnel syndrome, mainly caused by trauma, strain and other wrist lesions or degeneration, compression to the nerve will cause numbness and weakness of the fingers, but also accompanied by numbness in the arms, wrists and other parts, finger flexibility is reduced.

4, neuritis, early symptoms are mainly sensory disorders, often appear symmetrical pain, numbness, insect crawling, fever, electric shock and other abnormal feelings, while lower limb symptoms are more common, from toes to knees may appear discomfort symptoms.