Blood tests and organ effects
Bilirubin and jaundice during chemotherapy
Bilirubin is a yellow pigment made when old red cells break down, which the liver clears into bile. If it builds up, the eyes and skin turn yellow, called jaundice. During treatment it can rise from medicines, liver inflammation, a blocked bile duct or other causes. New yellowing of the eyes or skin needs same-day assessment.
Yellow eyes or skin with fever or shivering · confusion, drowsiness or unusual behaviour · vomiting blood or passing black stools · severe tummy pain, especially in the upper right side · a rapidly swelling tummy · bleeding or bruising easily · very dark urine with pale stools and itching that is getting worse. Call your chemotherapy helpline or go to the nearest emergency department and say clearly that the person is on chemotherapy.
The short answer
What does a high bilirubin mean during chemotherapy?
Bilirubin is a yellow pigment made when old red blood cells are broken down. The liver collects it, processes it and sends it out in bile to the gut, which is what gives stools their colour. If bilirubin builds up in the blood, the whites of the eyes and then the skin turn yellow, which is called jaundice. Urine may become dark, stools may become pale, and the skin may itch. A blood report may show total bilirubin, and sometimes direct and indirect bilirubin, which help show where the problem lies.
During cancer treatment, bilirubin can rise for several reasons: a medicine irritating the liver, a flare of hepatitis, cancer in the liver, a blocked bile duct from a tumour or stone, rapid breakdown of red cells, or a harmless inherited condition called Gilbert syndrome. Bilirubin matters for treatment because several medicines, including docetaxel, paclitaxel, irinotecan and anthracyclines, are cleared by the liver, and doses may need to be lowered or paused when bilirubin is high. New yellowing is never something to wait on. This page explains the test. It cannot interpret your own result.
A blocked bile duct can often be relieved
If a tumour blocks the bile duct, a stent placed through an endoscopy or scan-guided procedure can drain bile and bring bilirubin down.
Itching can be severe
Jaundice from blockage often causes intense itching, which your team can help ease.
Some rises are harmless
Gilbert syndrome causes mild, fluctuating rises with fasting or illness and does not damage the liver.
If you notice yellow eyes, dark urine or pale stools, call your team the same day rather than waiting for your next blood test.Not sure whether this applies to you?
Ask an oncologistPossible causes
Why bilirubin can rise during treatment
- Medicine effects on the liver
- Chemotherapy, targeted tablets, immunotherapy, antibiotics, antifungals and herbal products can irritate the liver or slow bile flow.
- Blocked bile duct
- Pancreatic, bile duct and some other cancers, enlarged glands or gallstones can block bile flow, causing jaundice, pale stools, dark urine and itching.
- Cancer in the liver
- When cancer affects a large part of the liver, it may process bilirubin less well.
- Hepatitis
- Hepatitis B or C can flare during chemotherapy, and other viral infections can also inflame the liver.
- Breakdown of red cells
- Rapid destruction of red cells, from some medicines, transfusion reactions or immune problems, produces more bilirubin than the liver can handle.
- Gilbert syndrome
- A common, harmless inherited condition causing mild rises, especially with fasting, illness or stress.
What happens next
What your team may do if bilirubin rises
Examine you and review medicines
Your team checks for jaundice, tummy tenderness and swelling, and reviews every medicine and supplement.
Look at other liver tests
Liver enzymes, alkaline phosphatase, albumin, clotting and hepatitis tests help show the likely cause.
Arrange a scan
An ultrasound or CT scan checks for a blocked bile duct or changes in the liver.
Treat the cause
A stent may relieve a blockage, a medicine may be stopped, or hepatitis treated.
Adjust chemotherapy
Doses may be reduced or delayed until bilirubin improves, or a different medicine may be chosen.
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Being straight with you
What this page cannot tell you
It cannot tell you what is causing your bilirubin to rise or how serious it is. That needs examination, other blood tests and usually a scan. It also cannot tell you whether your treatment should be changed; your oncologist decides using limits set for each medicine.
It cannot advise on remedies for jaundice. Traditional treatments for jaundice, including herbal preparations, can harm the liver further or delay urgent care. Please do not use them without talking to your team.
Stents need care
If you have a bile duct stent, fever, shivering or returning yellowing may mean it is blocked or infected. This needs same-day attention.
Itching can be eased
Cool showers, moisturisers, loose cotton clothing and prescribed medicines can reduce itching. Ask your team before using creams.
Diet during jaundice
Small, light meals and enough fluids help. Avoid alcohol completely, and ask before changing your diet dramatically.
Skin colour can hide jaundice
On darker skin, yellowing is easier to see in the whites of the eyes, the palms and under the tongue.
Medicines may need changing
Some pain and anti-sickness medicines are processed by the liver and may need adjusting when bilirubin is high.
Gilbert syndrome is worth knowing about
If you have been told you have it, tell your team, as it affects how some medicines such as irinotecan are handled.
Children and newborn jaundice are different
This page is about adults on chemotherapy. Jaundice in babies has different causes and care.
Keep liver reports together
Trends in bilirubin and liver tests over several weeks help your team judge improvement.
Watch stool and urine colour
Pale, clay-coloured stools and dark, tea-coloured urine can appear before yellowing of the eyes is obvious. Noticing and reporting these changes early can speed up tests and treatment.
Blood clotting can be affected
When the liver is struggling, blood may clot less well. Report nosebleeds, bleeding gums or easy bruising, and tell any doctor before procedures that you have jaundice.
Why direct and indirect bilirubin are reported
Some reports split bilirubin into direct and indirect parts. A rise mainly in one part can point towards a problem with bile flow or the liver, while a rise in the other can suggest faster breakdown of red cells or Gilbert syndrome. Your team uses this split, together with scans and other tests, to narrow down the cause.
Rest and pacing during jaundice
Jaundice often comes with deep tiredness and poor appetite. Rest when you need to, eat small amounts often, and let family help with daily tasks while the cause is being treated.
What to do next
Call your team the same day for yellow eyes, dark urine or pale stools, and seek emergency care if yellowing comes with fever, confusion, bleeding or severe pain. Tell your team about all medicines and remedies, avoid alcohol and traditional jaundice treatments, and let your team interpret results and adjust treatment.
Commonly believed
Four beliefs about jaundice
During cancer treatment, jaundice needs medical assessment. Remedies can harm the liver and delay urgent care.
Medicines, blocked bile ducts, hepatitis and other causes are common. Tests find the reason.
New yellowing should be reported the same day, because some causes need prompt treatment.
Often the cause can be treated and chemotherapy adjusted or resumed.
Questions we are asked
Common questions about bilirubin and jaundice
What does bilirubin measure?
It is a yellow pigment from the breakdown of red cells, cleared by the liver into bile. The blood level shows how well this process is working.
Why does bilirubin rise during chemotherapy?
Medicines, blocked bile ducts, hepatitis, cancer in the liver, breakdown of red cells or Gilbert syndrome can all raise it.
When is jaundice serious?
New jaundice always needs same-day assessment. With fever, confusion, bleeding or severe pain it is an emergency.
What happens next if bilirubin is high?
Your team examines you, checks other liver tests, arranges a scan, treats the cause and may adjust chemotherapy.
What is a biliary stent?
A small tube placed in a blocked bile duct to let bile drain, which usually brings bilirubin down and eases itching.
Can I use home remedies for jaundice?
Please do not without advice. Some remedies can harm the liver or delay needed treatment.
Will my chemotherapy be changed?
Possibly. Several medicines need lower doses or delays when bilirubin is high. Your oncologist decides.
How can I ease itching from jaundice?
Cool showers, moisturisers, loose cotton clothes and prescribed medicines can help. Ask your team first.
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Sources
- British Liver Trust — Liver function tests
- NHS — Liver function tests
- Cancer Research UK — Blood tests
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
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