According to Mayo Clinic, a hemangioma is a scarlet, raised birthmark that consists of excess blood vessels. These birthmarks generally occur on the face, scalp or upper body and typically progressively decrease in size with most completely vanishing by the age of 10. 

John Hopkins Medicine says that an infantile hemangioma on a baby will typically be "80 percent of its maximum size" by about 3 months of age. They usually start shrinking and decreasing in redness by the time the baby has their first birthday in a process called involution. Almost half of those who had an infantile hemangioma will have scar tissue or excess blood vessels remain.

Dr. Denise W. Metry, a dermatologist at Texas Children's Hospital, wrote a report on ten lessons she learned at a hemangioma clinic. In the report, Metry wrote that people should avoid referring to hemangiomas by the word, "strawberry." 

According to Metry, there was a medical myth during the Dark Ages when people thought that hemangiomas were caused by women eating strawberries during pregnancy. Metry also wrote that there are still several unknown variables that continue to puzzle scientists, like the correlation between hemangiomas and genetically female children and babies with low birth weights as well as how the development of hemangiomas could be connected to the placenta.

John Hopkins Medicine notes most cases of hemangioma go away on their own without any treatment, however pediatricians will typically monitor these children to make sure they are healthy.