The severity of cavernous hemangioma of liver is related to the size of the tumor. Cavernous hemangioma of the liver is a common benign tumor of the liver, which is essentially a vascular tissue and usually does not cause special symptoms. If the tumor is not big and stable in size, it is not too serious; however, if the tumor is large (e.g., larger than 5cm) and grows rapidly, it may compress adjacent tissues or even rupture and bleed, and the condition is more serious and may even be life-threatening. The risk of cavernous hemangioma of the liver should be assessed by a physician. Those who have found cavernous hemangioma of liver need to under the guidance of physician for regular review or active treatment. In life, pay attention to keep a calm mind, pay attention to rest, reasonable nutrition, avoid smoking and alcohol. If there are symptoms such as abdominal pain, abdominal distension, abdominal mass, etc., please consult a doctor promptly.