Causes of sickness

There could be lots of different reasons why you feel sick, including the cancer itself and its treatment. 

Cancer as a cause of sickness

Get more information on why cancer itself could cause you to feel or be sick.

Sickness from treatment

Some cancer treatments cause sickness. Find out why this might happen to you and what can be done to help you feel more comfortable.

When you might feel sick

Sickness can begin at different points of your cancer treatment.

Other causes of sickness

There are things other than cancer or cancer treatment that can make you feel sick.

Last reviewed: 
25 Feb 2020
Next review due: 
25 Feb 2022
Coronavirus and cancer

We know it’s a worrying time for people with cancer, we have information to help.

Read our information about coronavirus and cancer