Hemangiomas are congenital disorders that develop from residual mesodermal tissue as a result of invasion of active endothelial-like germ into adjacent tissues, leading to the formation of endothelial-like strips that are tubularized and connected to the leftover blood vessels. The intra-tumoral vessels form a self-contained system and are not connected to the surrounding vessels. The main types of hemangioma are capillary hemangioma, cavernous hemangioma and trabecular hemangioma. The characteristics of capillary hemangioma, also known as strawberry nevus, can be summarized as the following three points: 1. They appear mostly 1 to 2 months after birth, and their initial appearance is as large as a pinhead to a soybean, gradually increasing in size and entering the proliferation phase, and slowly entering the degenerative phase or growing slowly at about 1 year old. 2.Dark red or bright red elevation, soft, receding color when pressed, no conscious symptoms. 3. They are usually found on the face, but also on the neck, chest, back and other parts of the body. There are two other types of hemangioma, parents should pay attention to differentiation: 1. Pathological examination shows capillary dilation and no abnormal proliferation of vascular endothelial cells. 2.Cavernous hemangioma: elevated bright red or purplish red tumor, which can be reduced by pressure, and then recovered after pressure is removed, mostly appearing at birth and will not fade. What are the factors for the development of the disease? 1.Genetic factors Many clinical experiences show that the occurrence of hemangioma is related to genetic factors. 2.Trauma factor How is strawberry hemangioma caused in babies? If the fetus is damaged by some trauma during embryonic development, it may cause bleeding in local tissues and transfer some hematopoietic cells to other embryonic characteristic cells. Or during embryonic development, vascular development often leads to abnormalities, as well as after birth due to trauma resulting in vascular malformations, which can cause the occurrence of strawberry hemangioma. 3, drug factors Many women during pregnancy, if they take a lot of birth control pills and due to physical discomfort to take a certain drug, have to take hormone treatment, will lead to the mother’s body estrogen or estradiol content is high, may lead to the occurrence of strawberry hemangioma disease, and some women during pregnancy, if subjected to the harsh environment, as well as the consumption of pesticide residues of Some women may also suffer from strawberry hemangioma if they are exposed to the harsh environment during pregnancy, or if they consume fruits and vegetables with pesticide residues. Therefore, the diet during pregnancy is very important.