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      • View 45 other cancers
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    • Managing side effects
      • Fatigue
      • Taste and smell changes
      • Hair loss
      • Pain and cancer
      • Peripheral neuropathy
      • Changes in thinking and memory
      • Lymphoedema
      • Mouth health
      • Nutrition and cancer
      • Breast prostheses and reconstruction
      • Fertility
      • Sexuality
    • Supporting someone with cancer
      • Caring for someone with cancer
      • Caring for someone with advanced cancer
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      • Supportive schools
      • Supportive workplaces
      • Caring for mob with cancer
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  • Get Support
    Our cancer helpline consultants are ready for your call to support all people impacted by cancer. We may be able to assist with direct support services or by putting you in touch with other people who can support you.
    • 13 11 20 – Speak to a cancer professional
    • How can we help you
      • Accommodation during treatment
      • Cancer Counselling
      • Financial Support
      • Legal & Workplace Support
      • Transport to treatment
      • Support after treatment
    • Connect with others
    • Online community
    • Coping with a diagnosis
      • Coping with emotions
      • Talking to kids about cancer
      • Cancer and your finances
      • Cancer and work
      • Cancer care and your rights
    • Health care professionals
    • Cancer stories
    • Cancer podcasts
    • Meditation and relaxation podcasts
  • Preventing Cancer
    Discover lifestyle choices to minimise your risk of getting cancer and the importance of screening and early detection for cancer survival.
    • Healthy diet and exercise
      • Limit alcohol
      • Be a healthy weight
      • Move more, sit less
      • Healthy Made Tasty
      • Our Kids Our Call
    • Quit smoking and vaping
      • Quit smoking
      • Tackling Tobacco
      • Smoke free environments
      • Electronic cigarettes
      • Generation Vape
    • Sun protection
      • Slip on a shirt
      • Slop on sunscreen
      • Slap on a hat
      • Seek shade
      • Slide on sunglasses
      • SunSmart NSW website
      • Improve your long game
      • Outdoor workers
      • Sporting groups
      • Buy sun protection products online
    • Screening and early detection
      • Cervical screening
      • Bowel cancer screening
      • Breast cancer screening
      • Lung cancer screening
      • Testicular cancer
      • Prostate cancer
      • Ovarian cancer
      • Liver cancer and hepatitis B
      • Check for skin cancer
    • CanAct – campaigning for better policies
    • Cancer Council shops
  • Research
    Research programs save lives, improve treatments and quality of life for cancer survivors.
    • Research we conduct
      • The Daffodil Centre
      • I-PaRCS
    • Research we fund
    • Search research by cancer type or topic
    • Information for researchers
      • Grant opportunities
    • Community participation in research
  • Get Involved
    Cancer Council exists through the generosity of the community. Find out how you can participate by donating, volunteering, fundraising or partnering with us.
    • Donate
      • Donate online
      • Make a regular donation
      • Donate in memory of a loved one
      • Make a major gift
      • Donate crypto
      • More ways to donate
    • Events and Fundraising
      • Events calendar
      • Fundraise your way – Do It For Cancer
      • Australia’s Biggest Morning Tea
      • Daffodil Day
      • Relay for Life
      • The Longest Day
      • The March Charge
      • 7 Bridges Walk
      • Stars Dance for Cancer
      • More ways to fundraise
    • Volunteer with us
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  • Diarrhoea
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Diarrhoea

Diarrhoea is when you have loose, watery bowel movements several times a day. You may also get cramping and pain, and have an urgent need to go to the toilet. Chemotherapy, radiation therapy to the abdomen (belly) or pelvis, some types of surgery (e.g. bowel), medicines, infections, reactions to certain foods, and anxiety can all cause diarrhoea. If the tips below don’t help improve diarrhoea, ask your doctor about anti-diarrhoea medicines and rest until you feel better.

For support managing constipation and diarrhoea, call the National Continence Helpline on 1800 33 00 66.


How to manage diarrhoea

  • Drink plenty of water such as diluted cordials and oral rehydration solutions (e.g. Gastrolyte) to prevent dehydration. Avoid high-sugar drinks, alcohol, strong caffeine or very hot fluids.
  • Watch for signs of dehydration such as dark yellow urine (pee) or urinating less than usual.
  • Choose foods that are low in insoluble fibre (e.g. bananas, mashed potato, white rice, white pasta, white bread, steamed chicken without skin, white fish). It may also help to eat foods that are high in soluble fibre (e.g. oats, barley, rye, legumes, peeled fruits and vegetables, avocado, soy products).
  • Avoid foods that are high in insoluble fibre (e.g. wholegrain breads, bran cereals, nuts and seeds, raw fruit, vegetable skins) and foods that increase bowel activity (e.g. spicy, fatty or oily foods, caffeine, alcohol or artificial sweeteners).
  • Switch to soy milk or lactose-free milk for a period of time. Having diarrhoea may affect your ability to digest the natural sugar in milk (lactose).

→ READ MORE: Managing dumping syndrome


Podcast: Appetite Loss and Nausea

Listen to more episodes from our podcast for people affected by cancer


Video: Eating well after a cancer diagnosis

Watch this video to learn why eating well is so important after a cancer diagnosis, and what you can do to maintain a healthy diet.

Key resource

Download a PDF booklet on this topic.

Nutrition for People Living with Cancer cover thumbnail
Nutrition for People Living with Cancer

Download PDF600kB

This information was last reviewed in July 2022. View who reviewed this content.

Jacqueline Baker, Senior Oncology Dietitian, Chris O’Brien Lifehouse, NSW; Lauren Atkins, Advanced Accredited Practising Dietitian, OnCore Nutrition, VIC; Dr Tsien Fua, Head and Neck Radiation Oncology Specialist, Peter MacCallum Cancer Centre, VIC; Rosemerry Hodgkin, 13 11 20 Consultant, Cancer Council WA; Clare Hughes, Manager, Nutrition Unit, Cancer Council NSW; John Spurr, Consumer; Emma Vale, Senior Dietitian, GenesisCare, SA; David Wood, Consumer.

View the Cancer Council NSW editorial policy.

View all publications or call 13 11 20 for free printed copies.

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