The clinical features of chronic pancreatitis are usually ill-defined but include relapsing upper abdominal pain. The pain radiates to the back and is relieved by crouching forward or by lying prone. The pain also increases usually 2-3 hours after meals. Early stage symptoms comprise of intolerance to sweet foods. In case of severe damage to the pancreas steatorrhoea, undigested food in stool and large stools are commonly found.