Low-density foci in the head of the pancreas are usually a sign of occupational disease or other factors. 1. Occupational diseases: for example, pancreatic cysts, pancreatic cancer, pancreatic mucinous tumor and other diseases may show such findings. 2. Other factors: For example, pancreatitis can cause low density foci in the head of the pancreas. In order to understand the condition, it is necessary to do further examination, such as tumor markers, enhanced CT, blood routine, pathology biopsy and other related examinations. Patients with low density foci in the head of the pancreas should actively seek medical treatment, patients should cooperate with the doctor’s treatment, in accordance with the standardized treatment under the guidance of the physician’s face-to-face consultation, and do not self-medication to avoid adverse results.