9) Backache
Irritable Bowel Syndrome causes pain in the lower lumbar area. The most common complaint from patients who have IBS regarding back pain is that they experience acute lower back pain with a predominance in the left side. Some patients also experience chronic lower back pain that can generate a hernia between the fifth lumbar vertebra and the sacrum to the left side. IBS patients also frequently complain of pain in the left side of the hip bone due to spasms of the colon, which generate an increase in muscle tension of the left psoas-iliacus muscle.
