What causes abdominal distension and belching in advanced liver cancer?

Advanced liver cancer patients appear abdominal distension, belching is very common, mainly because liver cancer development to the late stage will cause severe anemia and hypoproteinemia, can lead to ascites. At the same time liver tumor caused liver capsule, leading to abdominal distension, this time bile and some digestive enzyme secretion reduced, indigestion, so easy belching, belching.