If there are obvious triggers such as sudden flashback, sprain, after lifting heavy objects, or even without any triggers, a series of symptoms such as lumbago, lower limb string numbness, pain, etc., you can further self-observe and check from the following aspects to self-judge whether you are suffering from lumbar disc herniation. 1, after acute sprain, whether there is a limp, such as a hand on the waist or a hopping gait of the affected lower limb for fear of weight-bearing, or a posture of habitual body leaning forward while the hip is convex to one side. 2. Whether the lumbar spine is bent to one side because of trying to avoid pain, and whether the pain can be relieved to some extent after bending. 3.Is the pain worse when sitting up, standing or walking, and relieved when lying down? 4.Whether the symptoms of low back pain increase when coughing, defecating or laughing, or leg pain and numbness appear. 5.After resting in supine position, if the pain is still not relieved, try to see if the pain is relieved when lying on the side, bending, flexing the hip or knee. 6.In the prone position, press the middle and both sides of the lumbar spine with your hands to see if there is clear pressure pain. 7.In supine position, then sit up and observe whether the knee joint can be flexed due to pain in the lower limb of the affected side. 8.In supine position, the knee joint on the affected side is straightened and the affected limb is elevated, and observe whether its height is limited due to pain. If several items match, there is a possibility of suffering from lumbar disc herniation, and you should seek early medical attention and examination (physical examination, X-ray, CT or MRI) to confirm the diagnosis in order to get timely treatment and early recovery.