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Causes of breathlessness

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

Side effects of treatment

Find out how surgery, chemotherapy or radiotherapy might affect your breathing. 

Heart problems

Read about how cancer and treatment can affect your heart, and how it might cause breathlessness. 

Fluid on the lungs or abdomen

Read about how cancer can cause fluid to collect around the lungs and build up in the abdomen.

Blood vessel blockage

Find out how a blood vessel blockage in the neck can cause breathlessness.

Anaemia, chest infection and other causes

Information on other causes of breathlessness, including anaemia and chest infections.

Information and help