Hemangiomas are formed by the proliferation of vascular endothelial cells during embryonic development and are commonly seen in congenital benign tumors or vascular malformations of the skin and soft tissues, mostly observed at birth or shortly after birth. The residual embryonic vascular endothelial cells, active endothelial-like embryonic buds invade adjacent tissues, forming endothelial-like cords, which after canalization connect with existing blood vessels to form hemangiomas. The blood vessels within the tumor form a separate system, not connected to surrounding blood vessels. Hemangiomas can occur throughout the body; those occurring in the oral and maxillofacial regions account for 60% of all hemangiomas, followed by 25% in the trunk and 15% in the limbs. Therefore, some hemangiomas are congenital benign tumors, while others are caused by vascular malformations.