Shortness of breath is a common problem for people with cancer. This can be due to the cancer itself or treatment. The treatment you need depends on the cause of your breathlessness. There are a number of things you can do to help yourself.

Contact your hospital advice line or GP straight away if:

  • you suddenly become breathless 
  • your breathing gets worse 
  • your breathing is painful

If you can't speak to someone quickly, call 999 or go to your local Accident and Emergency (A&E). You may need urgent treatment.

About shortness of breath

People with cancer can become short of breath for many different reasons. Breathing problems can be caused by some types of cancer and cancer treatments and other conditions such as pain and heart problems. 

Signs and symptoms of breathlessness

Symptoms of breathlessness include fast or shallow breaths and wheezing. Find out more about these and other possible symptoms.

Causes of breathlessness in people with cancer

Breathlessness can be caused by cancer or its treatment. Other medical conditions can also cause breathlessness. 

Treatment for breathlessness

The type of treatment you need depends on the cause of your breathlessness. Find out about treating breathlessness, including treating fluid on the lung (pleural effusion).

Fluid on the lungs in people with cancer (pleural effusion)

Cancer can cause fluid to collect around the lungs causing problems with breathing. This fluid build up is called a pleural effusion.

Breathing problems resources and support

Organisations, support groups, and books to help you cope with breathlessness and other symptoms caused by cancer and its treatment.  

 

Last reviewed: 
30 May 2023
Next review due: 
30 May 2026