The gene affected by CF controls the movement of salt and water in and out of cells. People with cystic fibrosis experience a build-up of thick sticky mucus in the lungs, digestive system and other organs, causing a wide range of challenging symptoms affecting the entire body. Read on for more details and links to relevant information, or examine our new interactive body!
To have CF, you need to have inherited two faulty copies of the gene (one from each parent), and as there are many different gene mutations that cause cystic fibrosis, each person with the condition can have very different symptoms depending on the two genes they carry. While people with CF often look healthy on the outside, each individual is battling their own range of symptoms on a daily basis. Find out more about genetics and diagnosis.
The build-up of mucus in the lungs causes chronic infections, meaning that people with cystic fibrosis struggle with reduced lung function and have to spend hours doing physiotherapy and taking nebulised treatments each day. Exacerbations (a sudden worsening of health, often owing to infection) can lead to frequent hospitalisation for weeks at a time, interfering with work and home life. Find out more about how the lungs are affected and some of the research we’re funding to help.
The digestive system
As the pancreas becomes blocked with mucus, enzymes required for digesting food cannot reach the stomach. People with cystic fibrosis often need to take more than 50 tablets a day to help digest food and keep respiratory symptoms in check. Find out more about how CF affects the digestive system.