Decorative image

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 treatments such as surgery, chemotherapy and radiotherapy might affect your breathing. 

Heart problems

Read about how cancer and its treatment can affect your heart, and might lead to breathlessness. 

Fluid on the lungs or in the abdomen

Read about how cancer can cause fluid to collect around the lungs or in the tummy (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.

Last reviewed: 
03 Oct 2017

Information and help