Why is the longer the birthmark, the bigger it is

summary

My cousin has a large birthmark on his neck. Recently, I heard that he is considering removing the birthmark by laser. After several months of treatment, the birthmark is really gone. Let me introduce why the longer the birthmark, the more general it is.

Why is the longer the birthmark, the bigger it is

Reason 1: during the embryonic development, especially in the early stage of vascular tissue differentiation, the red birthmark developed into a red birthmark due to the small-scale dislocation of its control gene segment.

Reason 2: according to the observation, the incidence of red birthmark in girls is higher than that in boys. The level of estradiol in hemangioma tissue is higher. Estradiol is an estrogen in human body, which indicates that it is related to the level of estrogen.

Cause 3: the cause of formation of red birthmark the cause of long red birthmark is due to the lack of nerves dominating the blood vessels at the lesion site, which makes the capillaries dilate and congest. At first, it appears as red or pink patches. Later, it deepens with age, turns into bright red and purple, and thickens into nodules.

matters needing attention

Birthmark is actually a kind of mole, some are born, some are born soon after birth. So far, no one knows the cause of the formation of birthmarks. The color of birthmark has cyan, black, red, etc.