Lumbar protrusion refers to lumbar intervertebral disc herniation, the more you hang the bar, the more pain is considered to be the pulling force is large, lumbar intervertebral disc herniation acute stage and serious lumbar intervertebral disc herniation and other causes. 1. Pulling force is large: if the patient hangs the bar pulling force is large, due to the prolonged pulling muscle, easy to cause lumbar muscle strain, thus appearing lumbar disc herniation patient hangs the bar the more the phenomenon of pain. 2. Acute attack of lumbar intervertebral disc herniation: patients with a history of lumbar intervertebral disc herniation, lumbar intervertebral disc pressure increases when hanging the bar, increasing the pressure on the nerve root, which will lead to the symptoms of the more the more pain hanging the bar. 3. Severe lumbar disc herniation: For patients with severe lumbar disc herniation, the more the bar hangs may lead to an increase in the tension of the nerve root, so that the compression is stronger, which often makes the symptoms of lumbar pain and lower extremity radiating pain aggravate. When lumbar disc herniation patients appear the more hanging bar symptoms the more pain, it is recommended to go to the hospital in time to avoid delays in the condition.