A spenectomy, often spelled as "splenectomy," is a surgical procedure that involves the removal of the spleen, an organ that plays a role in filtering blood and supporting the immune system. This procedure may be performed due to various conditions, such as splenic rupture, certain blood disorders, or tumors. While individuals can live without a spleen, they may have an increased risk of infections and may require vaccinations or prophylactic antibiotics post-surgery.