Primary ciliary dyskinesia (PCD) is a genetic disorder that affects the movement of cilia, tiny hair-like structures on the surface of cells. These cilia play a crucial role in clearing mucus and debris from the respiratory tract, as well as in reproductive health. When cilia do not function properly, it can lead to chronic respiratory infections, sinus issues, and fertility problems. Individuals with PCD may experience symptoms such as persistent cough, frequent lung infections, and ear infections. Diagnosis often involves specialized tests to assess ciliary function. Early detection and management are important to improve quality of life and reduce complications associated with the condition.