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Early pancreatic cancers often do not cause any signs or symptoms. By the time they do cause symptoms, they have often grown very large or already spread outside the pancreas.
Having one or more of the symptoms below does not mean you have pancreatic cancer. In fact, many of these symptoms are more likely to be caused by other conditions. Still, if you have any of these symptoms, it’s important to have them checked by a doctor so that the cause can be found and treated, if needed.
Jaundice is yellowing of the eyes and skin. Most people with pancreatic cancer (and nearly all people with ampullary cancer) will have jaundice as one of their first symptoms.
Jaundice is caused by the buildup of bilirubin, a dark yellow-brown substance made in the liver. Normally, the liver releases a liquid called bile that contains bilirubin. Bile goes through the common bile duct into the intestines, where it helps break down fats. It eventually leaves the body in the stool. When the common bile duct becomes blocked, bile can’t reach the intestines, and the amount of bilirubin in the body builds up.
Cancers that start in the head of the pancreas are near the common bile duct. These cancers can press on the duct and cause jaundice while they are still fairly small, which can sometimes lead to these tumors being found at an early stage. But cancers that start in the body or tail of the pancreas don’t press on the duct until they have spread through the pancreas. By this time, the cancer has often spread beyond the pancreas.
When pancreatic cancer spreads, it often goes to the liver. This can also cause jaundice.
There are other signs of jaundice as well as the yellowing of the eyes and skin:
Pancreatic cancer is not the most common cause of jaundice. Other causes, such as gallstones, hepatitis, and other liver and bile duct diseases, are much more common.
Pain in the abdomen (belly) or back is common in pancreatic cancer. Cancers that start in the body or tail of the pancreas can grow fairly large and start to press on other nearby organs, causing pain. The cancer may also spread to the nerves surrounding the pancreas, which often causes back pain. Pain in the abdomen or back is fairly common and is most often caused by something other than pancreatic cancer.
Unintended weight loss is very common in people with pancreatic cancer. These people often have little or no appetite.
If the cancer presses on the far end of the stomach it can partly block it, making it hard for food to get through. This can cause nausea, vomiting, and pain that tend to be worse after eating.
If the cancer blocks the bile duct, bile can build up in the gallbladder, making it larger. Sometimes a doctor can feel this (as a large lump under the right side of the ribcage) during a physical exam. It can also be seen on imaging tests.
Pancreatic cancer can also sometimes enlarge the liver, especially if the cancer has spread there. The doctor might be able to feel the edge of the liver below the right ribcage on an exam, or the large liver might be seen on imaging tests.
Sometimes, the first clue that someone has pancreatic cancer is a blood clot in a large vein, often in the leg. This is called a deep vein thrombosis or DVT. Symptoms can include pain, swelling, redness, and warmth in the affected leg. Sometimes a piece of the clot can break off and travel to the lungs, which might make it hard to breathe or cause chest pain. A blood clot in the lungs is called a pulmonary embolism or PE.
Still, having a blood clot does not usually mean that you have cancer. Most blood clots are caused by other things.
Rarely, pancreatic cancers cause diabetes (high blood sugar) because they destroy the insulin-making cells. Symptoms can include feeling thirsty and hungry, and having to urinate often. More often, cancer can lead to small changes in blood sugar levels that don’t cause symptoms of diabetes but can still be detected with blood tests.
Our team is made up of doctors and oncology certified nurses with deep knowledge of cancer care as well as journalists, editors, and translators with extensive experience in medical writing.
Fernandez-del Castillo C. Clinical manifestations, diagnosis, and staging of exocrine pancreatic cancer. UpToDate website. https://www.uptodate.com/contents/clinical-manifestations-diagnosis-and-staging-of-exocrine-pancreatic-cancer. Updated October 19, 2018. Accessed January 2, 2019.
National Cancer Institute. Physician Data Query (PDQ). Pancreatic Cancer Treatment – for Health Professionals. 2018. Accessed at https://www.cancer.gov/types/pancreatic/hp/pancreatic-treatment-pdq on November 1, 2018.
Winter JM, Brody JR, Abrams RA, Lewis NL, Yeo CJ. Chapter 49: Cancer of the Pancreas. In: DeVita VT, Lawrence TS, Rosenberg SA, eds. DeVita, Hellman, and Rosenberg’s Cancer: Principles and Practice of Oncology. 10th ed. Philadelphia, Pa: Lippincott Williams & Wilkins; 2015.
Last Revised: February 11, 2019