The possible outcomes of peritoneal metastasis of liver cancer include: massive ascites formation, extensive abdominal cavity metastasis, bone metastasis, brain metastasis and so on. 1. Massive ascites formation: after peritoneal metastasis of liver cancer, the permeability of peritoneum increases and a large amount of fluid leaks out to the abdominal cavity to form effusion, and the patient will have the manifestation of ascites such as abdominal distension and difficulty in respiration, and the puncture will mostly show bloody effusion. 2. Extensive abdominal metastasis: after liver cancer has metastasized to the abdominal cavity, extensive abdominal implantation metastasis may occur, which may cause corresponding manifestations, such as invasion of kidney may cause hematuria, and metastasis to pancreas may cause abdominal pain. 3. Bone metastasis: Bone is an easy site for malignant tumors to metastasize in the late stage, and common metastatic sites include spine, ribs, pelvis, etc., which will cause persistent pain or even pathological fracture in the corresponding areas. When spinal metastasis occurs, it may compress spinal cord and cause paralysis. 4. Brain metastasis: brain metastasis can occur in advanced stage of liver cancer, which can compress normal brain tissue and even form brain hernia, which is also an important cause of death in advanced stage of cancer. It is recommended that patients with peritoneal metastasis of liver cancer should go to the hospital as early as possible and take corresponding treatment measures to improve their symptoms and prolong their survival period.