Just as a switch corresponds to a light bulb, and we know which light bulb does not light up, we find which switch is broken, there is an interesting and accurate correspondence concern for the neurological symptoms caused by cervical spondylosis and lumbar disc herniation. Cervical spine localization: numbness in the thumb: may suggest, cervical spine 56 segmental herniation. Numbness in the middle finger: may indicate a herniated cervical spine segment 67. Numbness of the little finger: may indicate a protrusion of the cervical 7 thoracic 1 segment. In addition, weakness of the thumb upward may indicate a herniated cervical spine segment 56. Weakness of wrist dorsal extension may indicate cervical vertebral segment 67 protrusion. If you can’t hold paper or money in your hand, it indicates a cervical 7 thoracic segment protrusion. These are the knowledge that professional doctors have, but in fact it is easy for the people to remember. It is easy to remember, interesting and useful. In general, it is numbness and pain in the outer and back side of the lower leg below the knee or in the dorsum, heel, or bottom of the foot (usually a unilateral limb). It is sometimes accompanied by low back pain and discomfort in the hip and buttocks. Lumbar 34 disc herniation: pain in the medial calf, or numbness. Lumbar 45 disc herniation: pain or numbness in the lateral calf. Pain or numbness in the back of the foot. Lumbar 5 sacral 1 disc herniation: pain or numbness in the back of the calf and pain or numbness in the heart of the foot. For details, please refer to my episode of Beijing TV’s “I am the Great Doctor”, where I use stickers to stick spinal models on the spot to talk about the correspondence between herniated discs, nerves and numbness in the hands and feet, you can check out the following video link: http:///zhuanjiaguandian/Harryhp_2244192887.htm