Since cf is a multi organ disease there is many aspects and problems throughout the body.
There is a build up of sticky mucus in the lungs that causes frequent lung infections due to bacteria and germs building up in the lungs and not being able to pass.
People with cf have a lack of enzymes due to mucus that is treated by having to take enzymes before eating. If not it can cause stomach aces, pains, etc.
There can be sinus issues, heart, kidney, liver, and bone issues.
People can get osteoporosis at a young age and arthritis. Some people end up getting diabetes from the mucus which can scar The pancreas.
People can get spine issues also.