In my country, most babies have blue birthmarks on their buttocks and other parts, which are available from birth, and usually disappear until they are six or seven years old. Most people don’t know why infants and young children have such birthmarks, how did it come about, and how did it disappear?
Some people say that this birthmark of a child is squeezed out by the maternal canal bone fracture during childbirth. This is unreliable, and some mythological statements are even more unreliable. In fact, the cyan birthmark of infants and young children is a kind of congenital dermal melanocytosis without any harm. Since this birthmark basically appears the most in Mongolian (yellow genus), at least 95% The above yellow babies will have this kind of blue birthmark, so it is also called Mongolian spots, Mongolian spots or Mongolian spots. This phenomenon is also very common among Indians, with a probability of nearly 90%. In fact, there are many black African babies, but it is basically impossible to see due to skin reasons. More than half of babies in Latin American countries will have this phenomenon, and the possibility of white people in Europe and the United States is less than 10%. It can be seen that yellow people have this phenomenon the most, almost everyone has it when they were young.
Mongolite phenomenon can occur in any part of the body of infants and young children. It is more common in the waist and buttocks, and looks special gray-cyan or blue. It is generally believed that the real reason for its formation is that some melanocytes stay in the deep part of the dermis during embryonic development during the transition from the neural crest to a certain area of the skin epidermis. It is a kind of melanin deposition.
Both human experience and medical research have found that Mongolian spots have no harm to the bodies of infants and young children, so there is no need to treat them and not worry. As infants and young children grow, the color of the cyan birthmark will gradually fade and disappear, but the time for complete disappearance is often in childhood, so parents and friends don’t have to worry. Only those who look very light blue, but whose color turns black or red, or who have symptoms of protruding from 's epidermis, need treatment, but that symptom is actually other diseases, not Mongolian spots.
