Immune system and Irritable Bowel Syndrome.. A virus or bacteria is known inflammation results from the immune system in its attempt to address the body intruder

Another theory says that IBS is caused by a virus or bacteria is known, produces inflammation of the immune system in its attempt to address the body intruder, in fact, that make this theory surfacing is to study and see the effect of drugs that inhibit the immune system, which succeeded in controlling and mitigating symptoms in many patients with irritable bowel syndrome.