• Cirrhosis
• Alcoholic hepatitis
• Hepatic outflow obstruction:
  • Budd-Chiari syndrome (thrombosis of one or more of the large hepatic veins, the inferior vena cava, or both)
  • Hepatic veno-occlusive disease
• Cardiac ascites:
  • Severe tricuspid regurgitation
  • All causes of right-sided heart failure
  • Constrictive pericarditis

Low SAAG (<11 g/L) (associated with peritoneal neoplasms, infection and inflammation)

• Peritoneal carcinomatosis
• Peritoneal tuberculosis
• Pancreatitis
• Serositis
• Nephrotic syndrome
• Chylous ascites (lymphatic vessel rupture)
• Myxedema
• Meig's syndrome