It can be affirmed that hemangioma of the liver is a benign disease and its hazards are mainly as follows: 1. Hemangioma has a tendency to grow, and the longer it grows, the more it will destroy the adjacent liver tissue and related structures, which may affect the liver function. 2. According to the textbook, hepatic hemangioma has the possibility of rupture and bleeding, however, according to our communication in domestic and international conferences, neither our generation nor the last two generations of teachers have yet seen any case of rupture and bleeding of hepatic hemangioma in our career. Treatment: It must be made clear to everyone that taking medicine does not do anything! If the hemangioma is not too large, the patient will not feel anything and therefore, the vast majority of them do not need to be treated. Small hemangiomas do not need to be treated, however, they need to be reviewed once a year to see how they are progressing. In the following cases, surgical resection should be considered: 1. When the hemangioma is large (there is no unified standard, most think it is as large as 8-10 cm), surgical resection can be considered. 2.CT suggests that the hemangioma is close to important blood vessels, bile ducts and other structures, such as near the first, second and third hepatic hilum, if not treated, the hemangioma may invade the portal vein, bile ducts and inferior vena cava when it grows up, at this time, although the hemangioma is still small, surgical resection can also be considered. 3.If the trend of hemangioma growth is obvious through dynamic observation, such as obvious growth within 1~2 years, surgical resection should be considered, because if the growth is rapid and surgical treatment is not available, it may lead to further growth of hemangioma and invade important structures. Of course, interventional treatment can also be used, but it is not possible to remove the hemangioma, but only to fibrillate it, and individual patients may develop biliary complications (such as biliary stricture) after interventional treatment. Three-dimensional conformal radiotherapy can also be used. Three-dimensional conformal radiotherapy aims to destroy the endothelial cells of the hemangioma and cause the hemangioma to fibrillate and shrink, but it is not a treatment to remove the tumor, and radiotherapy may cause radiation hepatitis.