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Back pain背部疼痛

Lower back pain, also referred to as lumbago, affects 4 out of 5 people at some time in their lives.  In most cases the pain lasts from a few days to a few weeks, but in some cases can last longer and reoccur.  Back pain may come on quickly and be severe (acute) or develop gradually over time and cause longer-term problems (chronic).下背痛，也被称为腰痛，影响4 5人在一段时间在他们的生活。在大多数情况下，疼痛持续由数天至数星期，但在某些情况下可以持续更长的和再次发生。背部疼痛可能很快就和严重的（急性）或逐渐发展随着时间的推移和事业的长远问题（慢性） 。

The back is a complex structure consisting of: 24 bones (vertebrae) cushioned by shock absorbing discs (intervertebral discs), ligaments to hold vertebrae and discs together, tendons to connect muscles to vertebrae, spinal cord and nerves, and muscles.背面是一个复杂的结构构成的： 24骨头（椎骨）能够起到缓冲作用的减震光碟（椎间盘） ，韧带进行腰椎和光盘两者合计，肌腱连接肌肉脊椎，脊髓和神经，肌肉。

The lower part of the back, the lumbar region, is composed of 5 vertebrae known as L1 to L5.  This region bears the entire weight of the upper body (plus any extra weight carried) and is also under continual stress especially when bending, twisting, and lifting.较低的一部分，背部，腰地区，组成5椎体称为的L1到L5 。熊本地区的整个重量的上半身（加上任何额外的体重进行） ，又是不断强调，尤其是当弯，扭，并解除。

The complex structure of the lower back means that quite small amounts of damage to any of the structures of the back can cause a lot of pain and discomfort.  Pain in the lower back is a symptom that there has been stress or damage to the ligaments, muscles, tendons or discs.结构复杂的下背部，就是相当少量的损害的任何结构的背面可造成了很多痛苦和不适。疼痛，下背部是一个症状，有一直强调或损坏的韧带，肌肉，肌腱或光碟。

In most cases the back will heal itself but in severe and persistent cases it is essential to seek medical advice so that a correct diagnosis can be reached and appropriate treatment given.在大多数情况下，将回医治本身，而是在严重和持续的情况下是有必要的先请教医生，以便正确的诊断才能达成，并给予适当的治疗。