Acute pancreatitis 2 months or a little pain, may be related to the cause of treatment is not complete, complication of chronic pancreatitis, complication of retroperitoneal abscess and other reasons. 1. Incomplete treatment of the cause: such as gallstones are not clean, may cause pancreatitis 2 months still a little pain. 2. Complicated chronic pancreatitis: usually pain in the upper abdomen, accompanied by back pain, intermittent pain is common. 3. Complicated with retroperitoneal abscess: the main manifestation is persistent hidden pain in the abdomen or lower back. It is recommended that people with acute pancreatitis for 2 months or a little bit of pain go to the regular hospital in time, to clarify the cause of the disease, should be standardized treatment under the guidance of the doctor, so as not to delay the condition.