Alpha-mannosidase is an enzyme that plays a crucial role in the breakdown of complex carbohydrates, specifically glycoproteins and glycolipids. It helps in the digestion of mannose-containing oligosaccharides, which are important for various biological processes, including cell signaling and immune response. Deficiencies in alpha-mannosidase can lead to a rare genetic disorder known as alpha-mannosidosis. This condition is characterized by the accumulation of mannose-rich oligosaccharides in the body, leading to various health issues, including developmental delays and immune system problems. Early diagnosis and management are essential for improving outcomes in affected individuals.