The single biggest risk factor is liver damage. This may be due to cirrhosis, hepatitis B or C, or a history of alcohol abuse. Other possible risk factors include: a)       Ovarian, pancreatic, liver, or endometrial cancer. b)       Heart or kidney failure. c)       Pancreatitis. d)       Tuberculosis. e)       Hypothyroidism. f)       Cancer in organs in the abdominal area. g)       Kidney failure. h)       Congestive heart failure. Picture Courtesy: aminoco