Simply put, Irritable bowel syndrome is a lack of coordination between the colon, pelvis and sphincter.

Look at it like this... After a meal, the stomach becomes extended and releases various gastrointestional hormones. Following this, the nerves in the colon become activated and stimulate the muscles in the wall of the colon. This is known as a gastrocolic reflex.

This is part of normal digestion, but people with irritable bowel syndrome may experience cramps or diarrhea and an urgent need to go to the toilet even before a meal is finished.

Symptoms IBS can also occur on other occasions, not just during a meal.

As digestion takes place, food moves slowly back and forth with regular colon contractions heading towards the rectum. These contractions happen several times a day and will sometimes result in a bowel movement. Problems may occur if the action of the colon, pelvis and sphincter lack coordination and may result in constipation or diarrhea.

Approximately two thirds of sufferers of irritable bowel syndrome are women. Research has not been able to determine why women suffer more, although one school of thought is that reproductive hormones released during menstration may have some effect.

The biggest problem associated with it, is that it can happen at any time and without warning. This can interfere with ones normal lifestyle as often outings or events are arranged according to proximity to a toilet.

Symptoms often first appear in the teen years and usually take the form of a change in the frequency or consistency of bowel movements including diarrhea or constipation, or both or cramps and abdominal pain. Other symptoms include vomiting, nausea and acid reflux.

Fortunately, IBS does not cause permanent damage to the colon or precipitate other more serious conditions.

Causes of irritable bowel system have not been clearly documented, although sufferers often exhibit emotional and nervous problems including depression, stress, and personality disorders.

Irritable bowel syndrome can not be cured, although a number of treatments are used including prescription drugs to lessen colon spasms. Anti depressants are also used.

Self treatment in respect of diet is recommended, with different options recommended, depending on whether constipation or diarrhea predominate.

Plenty of water and simple foods including vegetables are recommended, wheras processed or spicy foods should be avoided. Symptoms of IBS also appear to be alleviated with regular exercise.