Backache is a common modern day problem and most people suffer from it at some point or another. The most common type of backache is lower back pain. According to patient.co.uk about 8 in 10 people have one or more bouts of lower back pain. In most cases it is not due to a serious disease or serious back problem and the exact cause of the pain is not clear. This is called nonspecific lower back pain. The usual advice is to keep active and do normal activities as much as possible.