The most common symptoms of pancreatic cancer are pain in the upper abdomen and jaundice. During physical examination, a mass in the upper abdomen can be felt, which is a common symptom. When these symptoms appear, further abdominal ultrasound or CT scans should be performed, as these two are the most commonly used imaging methods for diagnosing pancreatic cancer. Additionally, pancreatic MRI or PET-CT can also help enhance the diagnostic accuracy for pancreatic cancer. MRCP and ERCP are also used to assess the bile ducts and to evaluate the feasibility of surgery. Blood tests for pancreatic cancer-related tumor markers, such as carcinoembryonic antigen (CEA) and CA19-9, are commonly performed, with CA19-9 being particularly sensitive and specific for the diagnosis of pancreatic cancer.