Cryopyrin-Associated Periodic Syndromes (CAPS) are a group of rare, inherited autoinflammatory disorders caused by mutations in the NLRP3 gene. This gene plays a crucial role in the body's inflammatory response. CAPS include three main syndromes: Familial Cold Autoinflammatory Syndrome (FCAS), Muckle-Wells Syndrome (MWS), and Neonatal-Onset Multisystem Inflammatory Disease (NOMID).