Most of the hemangiomas in S4 segment of liver are small in size and have no obvious symptoms, but a small number of hemangiomas that are large in size need timely surgical treatment to avoid rupture and other serious conditions. Liver S4 segment is located in the left medial lobe of the liver, and hemangiomas are relatively common benign tumors in the liver, including cavernous hemangioma, sclerosing hemangioma, vascular endothelial cell tumor, and hepatic capillary hemangioma, and most of them do not pose a great danger to the organism. For hepatic hemangiomas smaller than 5cm, only regular review is needed, and the liver and gallbladder ultrasound can be repeated every half a year to one year or so to evaluate the size and growth rate of the hemangioma, and no special treatment can be carried out if there is no obvious increase in the size. If the size of hepatic hemangioma grows rapidly, or rupture occurs, and abdominal distension, shortness of breath and other phenomena occur when it presses on other organs, corresponding treatments should be carried out in time, and surgical treatments, such as laparoscopic resection of hemangiomas or part of the liver lobe, and interventional embolization, etc., are often used. At present, there is no clinical report on the deterioration of hepatic hemangioma, and most of the patients have no obvious clinical symptoms, but still need to pay attention to it, and regular review, if necessary, under the guidance of the doctor for treatment.