Why might a stomach make noises all the time?

If a person experiences stomach noises all the time, it indicates an increase in activity within the intestines, according to the National Institutes of Health. This increase can be caused by gas or a bowel obstruction.

For many people, frequent bowel sounds are normal and there is no cause for concern. However, in some people, constant bowel sounds can be indicative of celiac disorder or lactose intolerance, as stated by the International Foundation for Functional Gastrointestinal Disorders. If frequent bowel sounds last for more than a few days, contact a doctor. This is especially important if the sounds are accompanied by other symptoms, such as stomach pain.