What exactly is a birthmark? What did the scientists say?

Many babies will have a small mark somewhere when they are born, and the colors are red, cyan and so on. Some people say that birthmark is a person's memory of past lives, as a clue to find people in the afterlife. Is that really the case? So how do scientists explain birthmarks? Today we will talk about this topic. I think birthmarks may be caused by the following reasons:

First of all, let's talk about what a birthmark is. Birthmark, medically known as mother spot or mole, is an abnormal proliferation of skin tissue and abnormal shape and color of skin surface during development. Generally speaking, birthmarks only affect the appearance and do not need special treatment. The first cause of birthmark may be the pollution of the external environment. People are stimulated by external environmental pollution, which affects the growth of the fetus and thus produces birthmarks.

Secondly, genetic factors are also important reasons for birthmarks. The birthmark is caused by the mutation of chromosomes in human evolution, and then it is reflected on human skin through heredity. Of course, this is only scientists' speculation and has not been confirmed.

Third, if the fetus is malnourished in the mother's stomach, it will also produce a birthmark, because if the human body lacks some nutrients such as calcium, iron and zinc, it will easily affect the biochemical process of pigment synthesis, leading to an abnormal increase in pigment secretion by pigment cells and spreading to the epidermis through nerves, which will form a birthmark.

The probability of birthmarks in newborns is about 10%, which is also relatively high. Birthmarks are mostly related to pregnant mothers not paying attention to their living habits and external environment. Don't be superstitious that birthmarks must be memories of past lives. This is actually a superstitious statement.

Moreover, most birthmarks do not affect health, but a few birthmarks should attract parents' attention, pay attention to their size and changes at any time, treat them differently, and consult a doctor in a professional hospital if you are uncertain.