Chronic pancreatitis is a long-term inflammation of the pancreas, a gland behind the stomach. It occurs when digestive enzymes become activated within the pancreas, leading to tissue damage and scarring. Common causes include heavy alcohol consumption, gallstones, and genetic factors. Symptoms include persistent abdominal pain, nausea, vomiting, weight loss, and oily, foul-smelling stools. Complications may include diabetes, malnutrition, and pancreatic cancer. Treatment focuses on pain management, enzyme replacement therapy, dietary changes, and abstaining from alcohol. In severe cases, surgery may be necessary. Proper management is essential to alleviate symptoms, prevent complications, and preserve pancreatic function.