1 Sensory (afferent) nerves send information from the body back to the brain for processing, including information about pain, touch, taste, temperature, or other sensations.  The information travels along the nerve by an electrochemical signal, much like information traveling along an electrical cord. When a nerve is pinched, the signal is interrupted somewhere along its path.
http://www.emedicinehealth.com/pinched_nerve/page2_em.htm
When the pinched nerve in the lower back is at the disc level there most often is found a bulging disc or a true disc herniation. A bulging or herniated disc presses against one or more lumbar nerves and causes symptoms due to the actual pressure and/or inflammation.
http://www.lowerbackpain-help.com/pinched_nerve_in_lower_back.html
When in fact, most lower back pain is not caused by a pinched nerve at all. However, it is not an uncommon condition nonetheless. When a pinched nerve in lower back is present it can cause varying degrees of pain, numbness, weakness, burning, tingling, and pins and needles sensations. There are other conditions that can cause these very same symptoms. These conditions may not all be related to a pinched nerve.
http://www.lowerbackpain-help.com/pinched_nerve_in_lower_back.html
Chronic Pain: Causes, Solutions and Management. Learn about chronic pain causes, solutions and tips on managing pain. There are many treatments such as diet, strength training, deep breathing, therapy, and supplements that can help with chronic pain. Read more: Chronic Pain: Causes, Solutions and Management.
http://www.medicinenet.com/pinched_nerve_overview/page2.htm
What is a Pinched Nerve? 1  Nerves are like electrical cords distributed throughout the entire body that carry information from the brain to the rest of the body and vice-versa.  Motor (efferent) nerves carry information from the brain out to the body. This allows the brain to send commands to the various organs of the body.
http://www.emedicinehealth.com/pinched_nerve/page2_em.htm
A pinched nerve in the lower back can cause pain and other symptoms. Photo Credit bodyboarder qui sã©chauffe image by bacalao from Fotolia.com. Low back pain is a common problem. It can be caused by muscular tightness, disc injuries, or from compression on a nerve.
http://www.livestrong.com/article/155841-a-pinched-nerve-in-the-lower-back/
Must Read Articles Related to Pinched Nerve. Back Pain Health Back pain may be caused by learn more >>. Carpal Tunnel Syndrome Carpal tunnel syndrome is a disease of the hand characterized by numbness, tingling, pain, and weakness. The disease typically affects the thumb, index, and mid...learn more >>.
http://www.emedicinehealth.com/pinched_nerve/page2_em.htm
Anything which increases pressure around a nerve can cause a pinched nerve. Common causes include body position such as leaning on elbows, habitually crossing legs, or poor posture. Over time this may lead to pressure injury to nerves in these regions.
http://www.medicinenet.com/pinched_nerve_overview/page2.htm
A pinched nerve in the lower back can cause pain and other symptoms. Low back pain is a common problem. It can be caused by muscular tightness, disc injuries, or from compression on a nerve. The cause of back pain should always be properly diagnosed as different injuries call for different treatment plans. A pinched nerve in the lower back can cause many symptoms and complications if not managed properly.
http://www.livestrong.com/article/155841-a-pinched-nerve-in-the-lower-back/
Weight gain or water retention can predispose people to developing pinched nerves; thyroid disease (especially hypothyroidism, or low thyroid hormone levels) can contribute to both water retention and weight gain and can increase the risk of certain types of pinched nerves.
http://www.medicinenet.com/pinched_nerve_overview/page2.htm
symptoms of pinched nerve in low back
Varying degrees of pain, numbness, weakness, burning, tingling, and pins and needles sensations are the symptoms of pinched nerve in low back. 