The pancreas is a flat, J-shaped organ that is wider on the right and tapers to the left and is located behind the stomach, according to LiveScience. It is responsible for producing insulin, glycogen and enzymes that aid in the digestion of food.
Insulin and glycogen are important enzymes in the control of blood sugar, reports LiveScience. Insulin lowers the blood sugar and is necessary for glucose to enter the cells. Glycogen raises the blood sugar.
Occasionally the pancreas becomes inflamed and painful, usually due to pancreatitis, explains LiveScience. Chronic pancreatitis requires lifestyle changes, including changes in diet and stopping the use of alcohol and tobacco. It is a disease that causes permanent damage to the organ.