The average person is born with 33 individual bones in the back (the vertebrae) that interact and connect through flexible joints called facets. By the time a person becomes an adult most have only 24 vertebrae because some vertebrae at the bottom end of the spine fuse together during normal growth and development.
The back has more than 100 joints each with its cluster of tendons, ligaments and muscles. Yet we often subject this complex structure to heavy loads and stresses.
Poor posture, careless lifting and many everyday tasks from weeding the garden to carrying heavy shopping can cause painful strains and sprains on the back. Sometimes you simply may not know why back pain has appeared.
In most cases, the cause of back pain is ‘mechanical’ (that is, not caused by disease), which means the pain will usually get better over time. In other cases, the cause of back is diseases and old age in some cases. When the back pain does not get better over time, it will be a good idea to visit your doctor for advice. https://www.nhs.uk/conditions/back-pain/causes/
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