Generally, hiccups in advanced stage of liver cancer is not a phenomenon of dying, it may be caused by improper eating, or it may be caused by weakening function of digestive tract or metastasis of cancer cells. 1. Improper eating: if patients with advanced liver cancer eat too fast or overeat, it is easy to stimulate the gastrointestinal tract and then hiccups will occur. 2. Weakened function of digestive tract: Usually, when liver cancer is in advanced stage, some patients may have esophagogastric fundus varices, which cause weakened function of digestive tract, and thus hiccups, nausea, vomiting, abdominal distension and other symptoms will appear. 3. Metastasis of cancer cells: if cancer cells start to metastasize from liver and cause stimulation to phrenic nerve, it is easy to cause spasmodic contraction of diaphragm and then hiccups will appear. To summarize, there are many reasons causing hiccups in advanced stage of liver cancer, which is not necessarily a manifestation of dying. Patients should go to the hospital for further relevant examination to clarify the specific causes, cooperate with doctors for active treatment and strengthen daily life management.