irritable bowel syndrome is it contagious
1 Irritable bowel syndrome has also been called spastic colon, functional bowel disease, and mucous colitis. 2  However, IBS is not a true colitis.. 3  The term colitis refers to a different group of conditions known as inflammatory bowel disease (IBD).rritable Bowel Syndrome Causes. 1  IBS is not contagious, inherited, or cancerous. 2  IBS has also developed after episodes of gastroenteritis. 3  It has been suggested that IBS is caused by dietary allergies or food sensitivities, but this has never been proven. 4  Symptoms of irritable bowel syndrome may worsen during periods of stress or during ...