Back to resources Impact on Bones, Kidneys, and Hearing Image In this comic book, Eugene explains how cystic fibrosis (CF) and medications used to treat CF can weaken bones, cause chronic kidney disease (CKD), and even damage hearing. DOWNLOAD Other ways to learn: Image How CF affects the bones, liver, and sinuses A more scientific look at the impact of CF on different parts of the body. Image CF & Progression Guide A comprehensive guide to CF, including information on causes, impacts, and care.