Hepatic hemangioma is a common benign liver tumor and has a high incidence. Most people with hepatic hemangiomas do not have clinical manifestations and are often found during a health checkup. What exactly causes hemangioma? Here we make a brief introduction. The main pathogenic factors are: 1, capillary tissue infection after deformation, causing capillary dilation. 2.After the local necrosis of liver tissue, the surrounding blood vessels become congested and dilated, and finally form vacuoles. 3, persistent restrictive venous stasis in the liver, causing venous vascular expansion, forming a spongy expansion. 4.Intrahepatic hemorrhage. The hematoma is mechanized and the blood vessel is reconnected to form a vasodilatation. 5, congenital hemangioma developmental abnormalities, most have a family genetic predisposition. There are also some social factors such as: 1, bad mood, life stress is a cause of liver hemangioma. It is proved that if you live under the mood of anger, tension and depression for a long time, you will have a good chance to develop hepatic hemangioma. 2, bad eating habits are also the main factors causing liver hemangioma. If you often smoke, drink alcohol, eat fatty and thick fat or spicy and stimulating food and cold food.