You will be surprised to know that even minor digestive problems, when left untreated, can lead to more serious and chronic diseases. A malfunctioning digestive system can cause malnutrition. The vitamins and other nutrients the body needs to function may not be available. With pancreas damaged the body is unable to produce insulin which leads to diabetes. Excessive acid can start affecting other organs of your body. There may be excess pressure on your kidneys and liver, causing long-term damage. Unprocessed fat can get deposited in your heart arteries. Your gums may begin to rot. Hence, it is imperative to get a proper digestion test done as soon as you feel that something is wrong with your digestive system.