Ascites in an infant or child

Hydrops fetalis is a condition in the fetus characterized by an accumulation of fluid, or edema, in at least two fetal compartments. By comparison, hydrops allantois or hydrops amnion is an accumulation of excessive fluid in the allantoic or amniotic space, respectively. [Source: Wikipedia ]

May Be Caused by

Common: Anasarca; Appendiceal perforation; Biliary atresia; Cardiac disease; Constrictive pericarditis; Erythroblastosis fetalis; Extrahepatic portal vein obstruction; Glomerulonephritis; Hemorrhage; Hydrops fetalis; Hypoproteinemia; Inferior vena cava obstruction; Nephrotic syndrome with hypoproteinemia; Peritonitis; Polycystic liver; Surgery; Trauma; Uremia; Urine ascites; Ventriculoperitoneal shunt
Uncommon: Antitrypsinase deficiency; Galactosemia; Gaucher disease; Hemolytic anemia with ascites; Hydrometrocolpos with rupture and plastic peritonitis; Lysosomal storage disease; Meigs syndrome; Metastatic disease to peritoneum; Neonatal chylous ascites; Perforated Meckel diverticulum; Preduodenal portal vein; Renal vein thrombosis; Ruptured ovarian cyst; Schistosomiasis; Thromboembolism of hepatic veins; Thrombosis of inferior vena cava; Tuberculosis; Tyrosinemia; Wilson disease