The short answer
Pancreatic cancer often causes no symptoms until it has grown. Possible signs include jaundice (yellowing of the skin and eyes), belly or back pain, unexplained weight loss, and new diabetes. These have many other causes.
Pancreatic cancer often causes no symptoms until it has grown.
Jaundice — yellowing of the skin and eyes — can be an early sign.
Belly pain that spreads to the back, and unexplained weight loss, are common.
New-onset diabetes or digestive changes can occur.
Choose how you want to read this
The whole article, with every detail and caution.
This page explains the possible signs of pancreatic cancer, why it is often found late, and when to see a doctor.
The simple version
The pancreas sits deep in the belly, behind the stomach. Pancreatic cancer often causes no symptoms until it has spread. When symptoms do appear, jaundice and belly or back pain are among the more common ones.
Possible signs
Symptoms can include:
- Jaundice — yellowing of the skin and the whites of the eyes
- Dark urine and light-colored stools, which often go along with jaundice
- Pain in the upper belly that may spread to the back
- Unexplained weight loss and loss of appetite
- Nausea or digestive changes
- New-onset diabetes
No single symptom points clearly to pancreatic cancer on its own. It is the combination, or symptoms that persist and worsen, that matters most.
Jaundice and new upper-belly or back pain should be checked promptly.
Why jaundice happens
Jaundice means the skin and the whites of the eyes turn yellow. It can come with dark urine and light-colored stools. It can have causes other than cancer. But it always deserves prompt evaluation.
Why it is often found late
According to the National Cancer Institute, pancreatic cancer typically has no early warning signs. Symptoms usually begin after the cancer has spread. That is why new or lasting symptoms deserve prompt attention. Do not wait to see if they pass.
New diabetes deserves attention
New diabetes is worth mentioning to a doctor, along with any other symptoms. This is especially true in someone without the usual risk factors for diabetes. The National Cancer Institute says new-onset diabetes may be a sign of pancreatic cancer, because pancreatic cancer can destroy the pancreas's ability to make hormones, including insulin.
Digestive symptoms and other signs
Other possible symptoms include loss of appetite, nausea, vomiting, gas, and bloating. Fatigue and leg swelling can also occur. Advanced cancer raises the risk of blood clots, which can cause leg swelling or trouble breathing. These symptoms have many other causes, but check with your doctor if you have concerning signs.
When to see a doctor
See a doctor for jaundice, ongoing upper belly or back pain, unexplained weight loss, or new diabetes. These symptoms have many other, more common causes. But they should always be evaluated rather than assumed to be minor.
What to ask your team
- What could be causing my symptoms?
- Could my jaundice be from something other than cancer?
- What tests would help find the cause?
- Does my personal or family history raise my risk?
Sources
Common questions
What are the symptoms?
Possible signs include jaundice (yellow skin and eyes), pain in the upper belly or back, unexplained weight loss, loss of appetite, nausea, light-colored stools, dark urine, and sometimes new diabetes.
Why is it often found late?
Early pancreatic cancer typically causes no warning signs. Symptoms usually begin after the cancer has spread.
What is jaundice?
Jaundice is a yellowing of the skin and the whites of the eyes, often with dark urine and light stools. It can have causes other than cancer, and it should be checked promptly.
When should I see a doctor?
See a doctor for jaundice, ongoing upper belly or back pain, unexplained weight loss, or new diabetes, especially if you have risk factors.
Questions to ask your doctor
Being prepared helps you get the most out of your appointments. Save or print these questions.
Tap a question to save it to your list (kept on this device).
Talk with a trained specialist or navigator
Cancer Explained provides educational guidance, but does not replace trained specialists, social workers, or your medical team.
Talk to a trained cancer information specialist
Free, confidential assistance from NCI Cancer Information Service via phone, chat, or email.
Contact your oncology team
Locate after-hours contact numbers, portal messages, or urgent triage phone lines.
Find a patient navigator
Get one-on-one help with appointments, logistics, translation, and care coordination.
Find a genetic counselor
Discuss inherited mutation risk, family history, and genetic testing options.
Find an oncology social worker
Access emotional counseling, family support groups, and mental health resources.
Find a financial navigator
Locate copay assistance foundations, grant programs, and lodging/travel support.
Find a clinical-trial specialist
Search matching studies and speak with NCI trial information specialists.
Get urgent help
Fever of 100.4°F (38°C) or higher during chemo, severe pain, or trouble breathing: call your cancer care team right away, day or night. Call 911 for an emergency.
Plain-language explanation of the published sources cited on this page. AI-assisted, source-checked, not clinician-reviewed.
Last updated: 2026-10-16Next planned review: 2027-07-07
Review details and limits
Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes, and this is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status — Source checked. This page was written with AI assistance and then compared with the sources listed on it, looking for statements those sources do not back up. That check is not a sentence-by-sentence record and can miss errors. It is not a medical review, and it does not confirm the page is complete or right for your situation.
General education — varies by person. Answers genuinely differ between people. This page explains what commonly varies and points you to your care team for your situation.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
Words to know
Tap any term to see what it means.
Knowledge check
0 of 3 answered
This self-assessment checks understanding of educational content only. It is not medical advice.
How this page was created
Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes, and this is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status: Source checked — This page was written with AI assistance and then compared with the sources listed on it, looking for statements those sources do not back up. That check is not a sentence-by-sentence record and can miss errors. It is not a medical review, and it does not confirm the page is complete or right for your situation.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
Read more about our editorial process, our use of AI, and our corrections policy.
Spotted a problem? Report an error — a factual mistake, broken or outdated source, confusing wording, or anything that seems unsafe. Please do not include names, medical record numbers, dates of birth, addresses, or other identifying medical information in your report.
After using this page, do you understand what to do next?
Anonymous — we only record the answer, never who gave it.