Pancreatitis is a condition characterized by inflammation of the pancreas. The pancreas is a large organ behind the stomach that produces digestive enzymes and a number of hormones. There are two main types: acute pancreatitis, and chronic pancreatitis. Signs and symptoms of pancreatitis include pain in the upper abdomen, nausea and vomiting. The pain often goes into the back and is usually severe. In acute pancreatitis, a fever may occur, and symptoms typically resolve in a few days. In chronic pancreatitis weight loss, fatty stool, and diarrhea may occur. Complications may include infection, bleeding, diabetes mellitus, or problems with other organs.

अग्नाशयशोथ अग्नाशय का सूजन है जो दो बिलकुल ही अलग रूपों में उत्पन्न होता है। एक्यूट पैन्क्रियाटाइटिस अचानक होता है जबकि क्रोनिक पैन्क्रियाटाइटिस की विशेषता "वसा पदार्थ के अधिक बहाव या मूत्रमेह के साथ या बिना बार-बार या निरंतर होने वाला पेट दर्द है।"