Cystic Fibrosis (CF) is a genetic disorder that affects the respiratory, digestive, and reproductive systems. It causes the production of thick, sticky mucus that clogs the airways, making it difficult to breathe and increasing the risk of lung infections. It also affects the pancreas, preventing the release of digestive enzymes, leading to malnutrition and poor growth. CF can also cause infertility in males due to the absence of the vas deferens.