Ascites occurs when fluid accumulates in the abdomen. This buildup occurs between two membrane layers that together make up the peritoneum, a smooth sac that contains the body's organs. It is usual to have a small amount of fluid in the peritoneum cavity.

Where do you get ascites?

Ascites (ay-SITE-eez) is when too much fluid builds up in your abdomen (belly). This condition often happens in people who have cirrhosis (scarring) of the liver. A sheet of tissue called the peritoneum covers the abdominal organs, including the stomach, bowels, liver and kidneys. The peritoneum has two layers.

How do you know if you have ascites?

Dullness along the flanks while in the supine position may indicate the presence of ascites. Various maneuvers can confirm this finding. The examiner should percuss from the midline laterally and if ascites is present, a change from the tympany of bowel gas to the dullness of fluids should exist.