What's the cause of birth mark

summary

When my sister's child was born, there was an erotic birthmark on her buttocks. The old people in the family said that it was normal, so I didn't pay special attention to it. However, when I found that the birthmark was getting bigger and bigger, I was a little worried. Today, let me learn from you the reason for the birth mark.

What's the cause of birth mark

The first reason is: the birthmark is called "mother spot" or "nevus" in medicine. It is an abnormal hyperplasia of skin tissue during development, with abnormal shape and color on the surface of the skin. Birthmarks can be found at birth, or they may appear only a few months after birth.

The second reason is: the birthmark is congenital dermal melanocytosis, which is caused by melanocytes staying in the deep dermis during the migration from neural crest to epidermis. There are many types of birthmarks. Generally speaking, most of the pigmented birthmarks have no way to fade. In most cases, they need to be cleared.

The third reason is that most of the birthmarks will gradually disappear with the growth of the baby, but a considerable part of the birthmarks will never regress, and even increase with age. Individual may also be the manifestation of visceral diseases, which requires consultation with a professional dermatologist for early diagnosis and treatment.

matters needing attention

The incidence of neonatal birthmarks is about 10%, which can be said to be very common. Most of the birthmarks only affect the appearance. If they do not affect the children's life, they can not be treated. However, with the increase of the children, they still need to be paid attention to.