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Low Back Pain - Topic Overview

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This topic provides a general overview of low back pain. If you have been diagnosed with a herniated disc or spinal stenosis, see the topic Herniated Disc or Lumbar Spinal Stenosis.

What is low back pain?

Low back camera.gif pain can happen anywhere below the ribs and above the legs. It is possible to hurt your back when you lift, reach, or twist. In fact, almost everyone has low back pain at one time or another.

What causes low back pain?

Causes of low back pain include:

Often doctors don't really know what causes low back pain.

What are the symptoms?

Depending on the cause, low back pain can cause a range of symptoms. The pain may be dull or sharp. It may be in one small area or over a broad area. You may have muscle spasms.

Low back pain can also cause leg symptoms, such as pain, numbness, or tingling, often extending below the knee.

A rare but serious problem called cauda equina syndrome can occur if the nerves at the end of the spinal cord are squeezed. Seek emergency treatment if you have weakness or numbness in both legs or you lose bladder or bowel control.

Most low back pain is short-term (acute) and will go away in a few weeks. It is more likely to become long-lasting (chronic) if you are depressed or under stress.

How is low back pain diagnosed?

Your doctor will ask questions about your past health, symptoms, and activities. He or she will also do a physical exam. Your answers and the exam can help rule out a serious cause for the pain. In most cases, doctors are able to recommend treatment after the first exam.

Tests such as X-rays, CT scans, and MRIs usually don't help.

But if you have a back pain problem that has lasted longer than 6 weeks, or if your doctor thinks you may have more than muscle pain, it might be time for one of these tests.

How is it treated?

Most low back pain will improve with basic first aid, which includes continuing to do light activity such as walking, and taking over-the-counter pain medicine as needed.

Walking is the simplest and maybe the best exercise for the lower back. It gets your blood moving and helps your muscles stay strong.

Your doctor or physical therapist can recommend more specific exercises to help your back muscles get stronger. These may include a series of simple exercises called core stabilization. Strengthening the muscles in your trunk can improve your posture, keep your body in better balance, and lower your chance of injury.

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