Occupying lesions in the head of the pancreas. There are three possibilities, one is a cyst, one is a benign tumor, and the other is a malignant tumor. If it is a malignant tumor, it leads to blockage of the pancreatic duct, which can easily cause jaundice. Benign tumors grow slowly, and cysts are usually asymptomatic. It is suggested that you can go to the hospital now to do an enhanced MRCP scan, roughly can distinguish which one, if it is a benign or malignant tumor, this will need to be surgically resected, and then sent to the pathology examination. Small cysts can be left untreated for the time being.