Cystic fibrosis is a genetic disorder that primarily affects the lungs and digestive system, leading to thick, sticky mucus buildup that can cause serious respiratory and gastrointestinal complications. It is caused by mutations in the CFTR gene, which encodes a protein responsible for regulating the flow of salt and water in and out of cells. As a result of these mutations, individuals with cystic fibrosis experience progressively worsening lung infections, difficulty breathing, malnutrition due to poor absorption of nutrients in the intestines, and other related health issues. Treatment typically involves a combination of medications to help improve lung function, prevent infections, and promote digestion as well as physical therapy to assist in clearing mucus from the lungs. Despite advances in medical care increasing life expectancy for individuals with cystic fibrosis, it remains a chronic condition requiring lifelong management and support.