How to distinguish infant hemangioma from red birthmark

The red birthmark of the baby is considered as nevus flammeus. The differences between hemangioma and nevus flammeus are as follows: 1. Hemangioma: 30% of the patients usually have symptoms at birth, the ratio of male to female is 1:3, and the incidence rate of children at birth is 1% - 2.6%. The natural course of disease includes proliferation, regression and regression stages. Histopathology can see the proliferation of endothelial cells in blood vessels; 2、 Nevus flammeus: 100% of the patients had symptoms at birth, and the symptoms might not be obvious. The incidence ratio of male to female was 1:1, and 0.3% - 0.5% of the patients could have wine like nevus. With the growth of age, the rash grew proportionally. Histocytology showed that the renewal of vascular endothelial cells was normal.