This procedure is called abdominocentesis — the controlled removal of excess fluid from the abdomen. In this canine patient, fluid buildup (ascites) occurred secondary to liver failure, where the liver can no longer regulate proteins and blood flow effectively. Removing the fluid helps relieve abdominal pressure, improves breathing comfort, and allows fluid analysis to guide treatment. Abdominocentesis provides symptomatic relief, but long-term management depends on addressing the underlying liv