If the herniated disc presses some of the nerve roots, you will feel pain, not only in the lower back but also one that goes down the leg, along the course of the relevant nerve. To prove the presence of a herniated disc, it is necessary to do a CT (Computed Tomography) scan or MRI (Magnetic Resonance Imaging) of the spine, and Electromyography (EMG), if necessary, in order to establish the degree of damage to the nerve root. Disc herniations occur as a result of trauma, which damages the fibrous ring most often in the lumbosacral or cervical region of the spine. The most common injuries result from improper weight lifting, improper twisting of the body, sudden movement, accidents, and sometimes the pain occurs with no clear provocative reason. This results in protrusion of the inner layer, which pushes the fibrous ring outside and compresses the nerve root coming out of this area, leading to neurological symptoms of pain, irradiation of pain along the nerve, and cramping.