Lumbar disc herniation can be determined by clinical manifestations, physical examination, imaging, and other tests. Lumbar intervertebral disc herniation refers to the degeneration of intervertebral discs, rupture of the annulus fibrosus and protrusion of the nucleus pulposus, which irritates and compresses the nerve root and cauda equina, causing a series of symptoms and signs, and it is one of the common causes of lumbar and leg pain. 1. Clinical manifestations: most patients manifest lumbago, often accompanied by radiating pain, numbness and weakness of the lower limbs, which affects walking and lumbar activities. In severe cases, incontinence, muscle atrophy and paralysis may occur. 2. Physical examination: when patients with lumbar disc herniation are subjected to straight leg raising test, straight leg raising strengthening test, supine belly test, femoral nerve pulling test, etc., most of the patients will have positive manifestations. 3. Imaging examination: such as lumbar X-ray examination, lumbar CT examination, magnetic resonance imaging (MRI) examination, etc., which can help to further clarify the diagnosis of lumbar disc herniation. 4. Other tests: such as electromyography, nerve conduction velocity and evoked potential test, etc., can help determine the scope and extent of nerve damage and observe the effect of treatment. If there is a need for a clear diagnosis of lumbar disc herniation, one should go to a regular hospital for diagnosis and treatment under the guidance of a professional doctor in order to minimize the adverse effects of the disease.