You are looking for low back pain
Low back pain fact sheet compiled by the National Institute of Neurological Disorders and Stroke (NINDS)
www.ninds.nih.gov/disorders/backpain/detail_backpa...
Low back pain (or lumbago) is a common musculoskeletal disorder Most often, the symptoms of low back pain show significant improvement within a few weeks
en.wikipedia.org/wiki/Low_back_pain
Read about low back pain symptoms, backache treatment and diagnosis. Important structures of the low back that can be related to symptoms there include the bony lumbar spine
www.medicinenet.com/low_back_pain/article.htm
Most low back pain is triggered by some combination of overuse, muscle strain, and injury to the muscles, ligaments, and discs that support the spine.
www.webmd.com/back-pain/tc/low-back-pain-cause
Low back pain can affect the back anywhere below the ribs and above the legs. Learn more.
www.webmd.com/back-pain/tc/low-back-pain-topic-ove...
Information about low back pain from the American Academy of Family Physicians.
familydoctor.org/117.xml
Low back pain is considered chronic if it persists for more than three months. Chronic low back pain is among the most common chronic pain syndromes, affecting
www.stoppain.org/pain_medicine/content/chronicpain...
Low back pain is one of the most common disorders in the United States. About 80 percent of people have at least one episode of low back pain during
www.uptodate.com/patients/content/topic.do?topicKe...
Pain felt in your lower back may come from the spine, muscles, nerves, or other structures in that region. Low back pain is the #2 reason that Americans see their doctor
www.healthandage.com/encyclopedia/Back-pain-low
Low Back Pain Online Medical Reference - from definition and diagnosis through risk factors and treatments. Authored by Dr. Kerry H. Levin of the Cleveland Clinic
www.clevelandclinicmeded.com/medicalpubs/diseasema...
