Young friends may not know, but those who have become parents will find an interesting phenomenon - a newborn baby will have some blue or even purple "bruises" on his butt.
Some people say that this is because the child is squeezed by the birth canal when he is born. But why do there are also children with caesarean section?
Some people say that this is caused by nurses’ slap, in order to make the child cry. Is this really the case with
?
1. What is the "bruise" on the baby's butt?
The "bruise" on a newborn baby is not really bruise, but a normal skin phenomenon called "congenital dermal melanocytosis", also known as "Mongolian spots". Simply put, it is a type of birthmark, and is a pigmented skin abnormality that occurs after birth. Generally speaking, the color of the patches will gradually become lighter or even disappear, and a very few will remain until adulthood.
Congenital dermal melanocytosis is a birthmark that the baby has when he is born. It can appear in any part of the baby's body. is mostly the buttock, back, and waist. Its size can also range from a few millimeters to more than ten centimeters. Most of the color of is blue and has no protrusions on the skin. feels as smooth as normal skin.
Congenital dermal melanocytosis is when melanocytes gather and precipitate in the dermis. When the baby is still in the embryonic state, melanocytes move from the neural spine to the epidermis and fail to penetrate the junction of the epidermis and dermis. causes melanocytes to be "trapped" in the deep dermis , thus forming. This is a genetic disorder that occurs on the skin and is not harmful to the human body and can subside on its own within a few years.
2. How did the name "Mongolian Spot" come from?
1885, "Mongolian spot" was first proposed by German doctor Edwin Baelz. Dr. Baelz worked in a Japanese clinic at the time. At work, most of the babies he met had irregular blue spots, and he did not encounter this situation in Europe.
At that time, Western colonialism was prevalent, and yellow people were troubled by racial discrimination. Although the doctor had no motivation for racial discrimination, the medical term "Mongolian Spot" was still marked by the times. was also regarded by some pseudoscientific Western scholars as a kind of " Ancestral Rebate phenomenon " and racial discrimination.
But soon, the name "Mongolian Spot" was challenged.
In 1903, a Japanese doctor discovered that white people also had similar phenomena , and then multiple disease names were proposed as alternatives. Finally in 1988, two Japanese scholars proposed the name "congenital dermal melanocytosis".
Due to the limitations of the times, the name of the disease has failed to reflect the essence of the disease, but it is still used to this day, such as suppurative granuloma, allergic purpura, etc. We cannot completely rely on the name of the disease to guess its essence.
3. How to identify whether pigmentation in newborns is "Mongolian spots"?
So how should we distinguish whether the pigmentation in newborns is Mongolian spots?
First of all, you can start with from the occurrence location. Mongolian spots mostly occur in the waist and hips, sacral and coccyx. More than 90% of the skin pigmentation that occurs in these areas are Mongolian spots.
Next, can be distinguished from color. The color of Mongolian spots is basically gray-blue, and the color is relatively uniform. The boundaries are not clear and there will be no protrusions on the skin.
Although Mongolian spots are often confused with coffee spots , they are different. Coffee spots are spots or patches appearing on the skin surface after birth of a newborn. The colors are mostly brown or yellow-brown. They are usually smaller than Mongolian spots and have a variety of shapes, and the appearance is not certain.
Coffee spots may be caused by pathological reasons, such as neurofibromatosis, which mostly do not resolve on their own, so parents need to identify them clearly.
4. How to treat atopic Mongolian spots?
Atopic Mongolian plaque is different from Mongolian plaque and can occur in the limbs and trunk. It is commonly in the scapula, above the clavicle and deltoid areas innervated by the posterior supraclavicular nerve and the lateral arm nerves. Its melanocytes may come from local nervous tissue. Some people may be accompanied by ipsilateral or bilateral Ota nevus, bright red spotted nevus .
If atopic Mongolian spots affect the beauty, you can consider removing them. methods include surgery, freezing, carbon dioxide laser, pulsed laser lamp, etc. At present, laser treatment is the most ideal. The specific treatment plan should be selected based on the depth of pigment, distribution and skin texture. Some patients can use a variety of lasers to complement each other to improve the treatment rate.
Generally speaking, Mongolian spots will not have too many problems, and most of them will gradually disappear with age. It is worth noting that a small number of children have Mongolian spots in obvious positions such as the face, which can easily cause trouble for children, cause inferiority complex, and be unfavorable for psychological development. In this case, you can also go to the dermatology department for diagnosis and treatment as soon as possible.
#The truth is here##39 Health Super Group#
Reference:
[1]Why do many newborn babies have "bruises" on their butts? Will it disappear as it grows? Finally know the answer. Popular Science China.2020-05-21
[2] Have the newborn grown "cyan footprints"? In fact, they are Mongolian spots. People's Daily Science Popularization. 2018-05-25
[3] "Name" is not true. What is the disease of Mongolian spots? . Medical Skin Channel.2020-09-21
Reproduction of
without authorization from the author
