Back pain is a symptom that can arise from many causes. It can range from a dull, annoying ache to absolute agony. Many cases of back pain are caused by stresses on the muscles and ligaments that support the spine. Sedentary jobs and lifestyles may create a vulnerability to this type of stress or damage. Obesity, which increases both the weight on the spine and the pressure on the discs, is another factor. Strenuous sports such as football and gymnastics can also damage the back