Back Pain : What are the symptoms of non-specific low back pain?

What are the symptoms of non-specific low back pain?
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Sometimes a pain may develop immediately after you lift something heavy, or after an awkward twisting movement. Sometimes it can develop for no apparent reason. Some people just wake up one day with low back pain.

Although non-specific back pain is sometimes called simple back pain, simple does not mean that the pain is mild. The severity of the pain can range from mild to severe. Typically, the pain is in one area of the lower back, but sometimes it spreads to one or both buttocks or thighs. The pain is usually eased by lying down flat. It is often made worse if you move your back, cough, or sneeze. So, non-specific low back pain is mechanical in the sense that it varies with posture or activity.

Most people with a bout of non-specific low back pain improve quickly, usually within a week or so, sometimes a bit longer. However, once the pain has eased or gone it is common to have further bouts of pain (recurrences) from time to time in the future. Also, it is common to have minor pains on and off for quite some time after an initial bad bout of pain. In a small number of cases the pain persists for several months or longer. This is called chronic back pain (discussed in more detail later).