A hypoechoic area is seen in the head of the pancreas, and cdfi (color Doppler angiography) does not show an abnormal blood flow signal, suggesting that there is no significant blood flow supply within the corresponding lesion, which may belong to the category of cysts. Through the ultrasound examination found that the head of the pancreas has abnormal echoes, the overall presentation of hypoechoic, further determination of the blood flow status, did not find obvious blood flow signal, will make the corresponding description. The overall judgment belongs to the category of cysts, which needs to be combined with clinical symptoms and medical history to make a comprehensive judgment. Further investigation can be done to determine the tumor markers and MRI. If the lesion has no obvious symptoms, it can be observed regularly, but once obvious abdominal pain and digestive abnormalities occur, it is necessary to consult a doctor in time and carry out standardized treatment under the guidance of the clinician, so as to avoid delaying the condition.