Causes of Congenital Hemangioma
A hemangioma is an abnormal bundling and growth of blood vessels. Although the exact cause is not known, there is some evidence that the tumor initiates from a multi-potent stem cell. This evidence is being used to develop treatments that prevent the excessive growth of the tumor.

Hemangiomas are not linked to hereditary or dietary factors. However, they are more common in Caucasian female infants and premature babies.