On this page: What is cancer fatigue? ι How does it feel? ι How does it affect you? ι What causes it? | How do people cope? | Tips for managing daily activities | When should I speak to the doctor or nurse? | When will the fatigue get better?
Fatigue is a feeling of severe tiredness. Many people who have cancer and cancer treatment have fatigue. This information answers common questions about cancer-related fatigue.
What is cancer fatigue?
Cancer fatigue means tiredness and lack of energy. Fatigue is the most common side effect of cancer and its treatment.
Cancer fatigue is different from everyday tiredness. It can happen suddenly. Unlike everyday tiredness, it can happen even if you haven’t been doing exercise or had a long day. Resting does not always help.
Cancer-related fatigue can go on for weeks, months or even years after you finish treatment. Doctors call this ‘chronic fatigue’ – long-lasting tiredness.
Most people will get their normal energy levels back between six months and a year after their treatment ends. For some people it can take longer.
Fatigue can be overwhelming and very frustrating. It can touch many parts of your life, such as your work and social life, relationships and general day-to-day living (eating, washing and cleaning).
How does it feel?
People can feel fatigue in different ways. People
with cancer fatigue describe feeling weak,
exhausted, sleepy, drowsy, weary, confused or
impatient. Some describe it as a ‘whole body
experience’ and say they ‘just cannot move’.
Others have tired or sore limbs and feel breathless,
even after only a little activity.
For many people, cancer fatigue is unlike anything
they have had before. It can be difficult to describe
and hard for others to understand.
How does it affect you?
Many people with cancer say fatigue is the most difficult of all side effects from their cancer and its treatment. Fatigue can affect how you think as well as how you feel. You may:
- need more sleep or find it hard to sleep
- have physical, emotional and/or mental exhaustion
- have a feeling of heaviness in your body, especially your arms and legs
- have less desire to do normal things, like eating, bathing, chatting with friends and family or shopping
- find it hard to concentrate or think clearly
- not feel like sex (loss of libido).
Everything can seem like an effort. You may become low in mood because of these feelings.
Some people can get depressed. If you have continued feelings of sadness, have trouble getting up in the morning or don't feel like doing things that you used to enjoy, talk to your doctor. You may have depression, and counselling or medication may help you.
‘I had no idea that I would still be feeling tired five months after finishing treatment ... I didn't know how to make it better and I was scared that's how it would be: that I wouldn't go back to normal, that I would never go back to having energy again.' - Georgina, cancer patient
What causes it?
Fatigue can be a side effect of
Some of these treatments reduce red blood cells.
This is called called anaemia. Anaemia means there
are fewer red blood cells to carry oxygen through
The cancer itself can also cause fatigue:
- Some tumours produce toxins that can cause
- Toxins can also stop cells making important
minerals, such as potassium and calcium. When
our levels of such minerals get too low it affects our
muscles and may cause weakness and tiredness.
- Cancer treatment can sometimes affect hormone
levels, which can also reduce energy levels.
Other things related to your illness can make you feel
tired: not eating well, pain, not sleeping well, feeling
stressed, having depression, coping with infections,
some drugs and not exercising.
You may also be affected by other health problems;
side effects from pain-relieving drugs, steroids,
sleeping tablets or antidepressants; and emotional
Doctors are still trying to find the exact causes of
and ways to manage fatigue after treatment finishes.
How do people cope?
If you feel fatigued, be honest about it, with yourself
and others. Check with your doctor whether there is
a medical treatment that could help you.
Try these ideas:
- Set small, manageable goals.
- When you plan your day, include rest times.
- Keep a record of how you feel during the day. For example, if you notice that you are very tired in the morning, plan to rest at this time.
- Have several short naps or breaks rather than one long rest period.
- Don't do more than is comfortable. Stop before you get tired or take note of the warning signs for next time.
- Eat well and drink plenty of fluids. Some people find that a diet with lots of fruit and vegetables and grain-based foods (like pasta and rice) gives them a feeling of energy. Others might get the same feeling from having more meat in their diet. A dietitian will be able to help if you want to change your eating habits.
- Smoking reduces your energy. If you smoke, talk about stopping to your doctor or the Quitline on 13 7848.
- Limit the amount of alcohol you drink. Alcohol can cause tiredness and energy loss.
- Exercise if you can. Exercise will keep you stronger and improve your sense of wellbeing. If you are not used to exercise, you could start a gentle walking program, beginning with five to 10 minutes at a time. Gradually increase this time as you feel able. You could also try other light exercise such as stretching.
- If you have been used to more vigorous or strenuous exercise, try easier or shorter versions of activities you enjoy. For example, instead of running, try yoga or t'ai chi. Build up to 30 minutes of exercise five to six days per week.
- Try to do things that make you happy. The joy you get from laughing with friends or playing with your dog may give you a boost.
- Listening to music, reading and meditating are not physically tiring and may help you to relax.
- Do the things that you need and want to do. If you have people around you who are able and willing, let them take on some of your usual activities.
- Limit the number of visitors you have.
- Avoid stress where possible: relaxation techniques and exercise can help to reduce unavoidable stresses.
- Keep a journal of your energy levels and activities.
- Call 13 11 20 to speak to someone who has been in a similar situation. They can share their story and tips on how to cope.
- Join a Cancer Support Group. You may also find it helps to speak with one of our cancer nurses, who can suggest strategies. Talking about your feelings can ease the burden of fatigue, and you can hear how other people have managed.
Tips for managing daily activities
Contact your local council and ask about their
services. These may include meals on wheels; home
cleaning, maintenance and gardening; day care for
adults and children; pet walking and grooming; and
volunteer visitors. Some of these services are free
and some are low cost.
The social worker at your hospital can advise you
about other services. A physiotherapist or
occupational therapist can also help.
In the bathroom
- Sit down to bathe and dry yourself.
- Long, hot showers and baths could make you feel
- Place a shower/bath organiser where you can
easily reach it.
- Install rails and handles where you need them,
for example, in the shower and near the toilet.
- Use extension handles on sponges and brushes.
- Install a raised seat on the toilet.
- Plan what you will wear and have your clothes
ready before dressing.
- Sit down to dress and try to avoid bending from
a standing position.
- Wear comfortable clothes and low-heeled shoes.
Housework and gardening
- See if your local council can provide a house
cleaner or gardener.
- Let family and friends help with tasks where
- Schedule household tasks over the week
(e.g. washing one day, vacuuming the next) so you
don’t do too much on one day. Lower your
standards for a while!
- Sit to do housework and gardening where possible.
- Use a shopping trolley rather than a basket.
- Have your groceries delivered. Consider doing
your supermarket shopping online.
- Ask for help. Use shops where the staff are
considerate and will carry your bags and boxes to
- Shop at less busy times (evenings or early in the
- Organise your list by aisle if you know your
- Use frozen foods.
- Make simple meals. These are all healthy and
easy to prepare: tinned sardines, tuna and salmon;
salad; omelettes and scrambled eggs; baked
potatoes; steamed vegetables; grilled lean chops;
vegetable stir fries.
- Rearrange things so you don’t have to bend or
reach. Store frequently used saucepans and
utensils on a bench rather than in a cupboard.
- Order take-away food sometimes if you can afford
it. Accept offers of meals from friends and family.
- If you don’t have a dishwasher, soak dishes instead
of scrubbing and let dishes air dry. Wash up after
each meal so the dishes don’t build up.
- If you’re making a soup or pasta sauce, make extra
portions that you can freeze.
- Encourage games where you can sit: drawing
pictures, playing board games, reading and
- Have children climb onto your lap instead of being
- Feed children at their own level (such as a play
table) if they’re too small to climb onto a chair at
the dining/kitchen table.
- Arrange child care so that you have regular rest
times on your own.
- If you are finding your usual duties difficult,
consider talking with your employer about whether
your duties or hours can be modified.
- If the fatigue is making working difficult, consider
taking leave or reducing your hours for a short time.
- If you can, plan to work hardest when you will feel
most energetic. Plan short rest periods for when
you are likely to be tired.
- If your work involves a lot of bending and
movement, see if you can change your duties for
the short term.
- Reduce the amount of bending and reaching you
have to do by placing frequently used items in easy
reach. Bend from your knees, not your back.
- Use a cart to move larger items.
- Delegate if you can: ask others to do things that
are too hard for you at the moment.
- Are you having problems with employment or
your employer because of your cancer or anything
related to your cancer treatment? Be aware of
your rights. Call 13 11 20 for our Workplace Advice
Service, which offers free advice from human
resources professionals. (Eligibility criteria apply
and the program is means tested).
- Going out with a friend is easier than going out
- Do things gradually at first. Aim to do more when
your fatigue improves.
- Plan rest times between activities.
- Try not to get overtired.
Is rest always best?
- Friends and family may advise you to ‘take it easy’
and ‘get plenty of rest’. But staying in bed for a long
time can cause you to feel even more tired. If you
rest for a long time, your muscles will weaken and
you will find it harder to be active when you want to.
Be as active as you can without making the fatigue
- Ask your doctor or nurse how much bed rest and
exercise they recommend.
- Other people may not understand that rest does not
make your fatigue go away. It may help to explain to
them that fatigue is different from normal tiredness.
When should I speak to the
doctor or nurse?
- Speak to your doctor before starting an exercise
program. Discuss other ways of managing the fatigue
and living as normal a life as possible.
Tell your doctor or nurse if:
- you get dizzy
- you feel a loss of balance when walking or getting
out of bed or a chair
- you fall or hurt yourself
- your body aches
- you lack energy
- you find it hard to wake up
- you have been too tired to get out of bed for 24
- you have any breathing problems
- your fatigue becomes worse
- you feel confused or cannot think clearly
- you have trouble sleeping.
When will the fatigue get better?
You may find that the fatigue begins to lift when
your cancer treatment ends. However, some people
are fatigued for some time after treatment ends.
Sometimes the fatigue will go and then return again.
Try to be patient if you don’t recover as fast as you
If your fatigue is worrying you, talk to your doctor
or nurse. They may be able to tell you how long
the fatigue could last.
Reviewed by: Annie Angle, cancer nurse, Dip. Oncology Nursing, Royal Marsden, London, October 2012.