"Stomach noises" are generally due to the turbulent passage of intestinal waste through the intestines. Turbulence occurs when gases are present in the intestines and/or when intestinal waste moves quickly. Intestinal peristaltic action (the natural contraction of the organ) can become stronger and thereby increase the speed at which waste moves through the intestines. Intestinal peristaltic action is, in fact, a series of rhythmic contractions of the smooth musculature that moves waste toward expulsion from the body (defecation). Intestinal waste in the small intestines is always liquid. But as the waste moves toward the anus, more and more water is absorbed through the body's tissues and in the rectum the resulting stools are of a soft consistency that is not entirely liquid in nature. If intestinal peristalsis is too strong, then the food waste moves so fast that there is not enough time to absorb the water; that’s why stools become liquidy (diarrhea). Strong peristalsis also manifests with abdominal cramps. it doesn't seem likely that stomach noises could be a sign of ulcerative colitis. Ulcerative colitis usually manifests with mucous diarrhea containing blood.