So far, there is no simpler examination and diagnosis method other than CT and MRI examination, but mastering the following characteristics of medical history can do some simple self-prediction of lumbar disc herniation, and at the same time can provide sufficient and reliable clues to physicians during consultation. 1. Low back pain with unilateral lower limb radiating pain, which is one of the typical symptoms of lumbar disc herniation. Most of the cases usually have low back pain first, and then low back pain with radioactive lower extremity pain later; some actions that increase abdominal pressure can aggravate the symptoms, such as straining to defecate, sneezing, and even coughing; patients who have low back pain first have pain for a short time of a few days, and a long time of several years. The areas are mostly in the lower low back and lumbosacral region. This type of pain has a deeper sensory site, a slower process, and a limited or widespread dull pain in the low back with inaccurate localization, aggravated by activity and relieved by bed rest. 2. Numbness, which is also a condition that can be felt subjectively by the patient. Usually the first feeling is numbness, or hot feeling; if not paid attention to, later slowly developed into a “woody” feeling; mostly in the lateral and lateral calf, the heel and the outer edge of the foot; 3, weakness, the patient can feel inflexible toe activities. This can be manifested as a weakening of the power of the big toe upward; it can also be manifested as a weakening of the power of the back of the foot upward or downward tensing; 4, low temperature of the lower extremity, this condition is less likely to occur. It may feel like one leg is “cold”; the calf, foot and toes are obvious; sometimes there may be unilateral or bilateral lower limb edema. If the above situation occurs in your life, it suggests that you are likely to have a lumbar disc herniation and should go to the hospital in time.