Backache is a pain that originates in the area of the spine. It is a common disorder that most frequently affects the lower back but can involve any area of the spinal column. Backache is not a disease but rather a symptom of some condition. Most commonly, backache results from muscular strain, overactivity, or stress. It may, however, be a sign of a more serious condition. Disorders of the spine, including infections, fractures, and ruptured disks, may produce back pain. Back pain associated with pain, numbness, or weakness of the leg or arm is usually the result of nerve damage. Other disorders, such as tumors, infections, kidney disease, and disorders of the pancreas, also can produce backache. See also Repetitive strain injury.
