What is the difference between lumbar sprain and lumbar disc herniation

The difference between lumbar sprain and lumbar disc herniation is as follows: 1. there is often a clear history of sprain after lumbar sprain, such as sunbathing or lifting heavy objects accidentally twisted, there is often a clear history of such sprain. 2. the pain is often a certain posture can induce obvious pain, and bed rest or lying on a sofa with a backrest this pain can often be significantly reduced, this is the characteristic of pain after lumbar sprain. The pain and numbness of one lower limb is often aggravated by activity and relieved by lying down, and sometimes when coughing or sneezing there is radioactive pain in this lower limb like an electric shock, which is typical of the symptoms caused by a herniated lumbar disc.