Why do people have belly buttons? The navel is called the first scar after birth. In the mother, human growth and development need to rely on the placenta to provide nutrition, and the umbilical cord is a bridge connecting the placenta and the baby. After the baby is born, it needs food to maintain the nutrition necessary for growth and development, and the placenta becomes useless. Doctors will cut the placenta and umbilical cord with scissors, because the umbilical cord has no neuropathic pain and will not feel pain.
After cutting the umbilical cord, the small mouth on the stomach will leave a scar, and the scar will gradually fall off with the baby's growth and development, eventually forming an umbilical eye. It's strange that the belly button grows in the middle of our body, but it has no physiological function.
The belly button is no different from our normal skin, but if you ever try to dig the belly button, you will have a very strange feeling. After the umbilical cord is cut, the blood vessels that used to deliver nutrition to the baby gradually disappear, and the skin around the navel will gradually become tough. Inside the cut umbilical cord, there will be two ligaments, one connected to the surface of the liver and the other connected to the bladder.
According to statistics, 90% of people's belly buttons are concave inward, which is why belly buttons are particularly prone to accumulate black mud. The composition of navel black mud is very complicated, including our dead skin cells, products excreted by the body's metabolism, small fluff on clothes, hair falling off the skin and so on. These tiny components combine with the dust in the air, and over time, this black mud is formed.
Since the composition is so complicated, the navel black mud naturally contains many bacteria. Scientists have made a statistic that there are more than 2300 kinds of bacteria in the black mud produced by human navel, and there are 67 different types of bacteria in each person's navel on average. It is conceivable that if you scratch your navel rashly, it will easily lead to bacterial infection.
Scientists even found a kind of bacteria that only exists in the sea in the black mud of human navel. There are even people who react the bacteria in their navel with milk and finally make cheese. It is no exaggeration to say that the black mud in the belly button even has its own ecosystem.
There are many folds in the belly button, which is not only easy to hide evil and shelter evil, but also very complicated to clean up. The dark and humid environment is very suitable for the growth of bacteria, and it will give off odor if it is not cleaned for a long time. It is difficult for people who love cleanliness to accept dirty and smelly black mud. I can't help but want to dig up the black mud.
Can the black mud in the belly button be dug out? The composition of black mud in navel is very complex, and there are a lot of bacteria, but most of these bacteria are harmless to human body. Even some bacteria can strengthen the skin's defense system and enhance human immunity. So there is no need to dig black mud in daily life. However, if the navel is never cleaned, the bacteria in the black mud will multiply indefinitely, which will eventually affect our health.
However, if you dig black mud by hand, it will easily cause some small wounds in your navel and eventually cause bacterial infection. If the navel eye is infected by bacteria, it is likely to cause the surrounding skin to itch and turn red, and white secretions appear. Grabbing the navel by hand may also lead to abdominal infection, and the consequences are very serious.
To sum up, the black mud in the belly button needs to be cleaned, but it can't be dug by hand. It should be cleaned in some gentle ways. The correct way to clean the belly button is to dip a cotton swab in warm water and rub it gently in the belly button until all the dirty things are wiped clean. Don't wash your belly button too often, just keep it once a week.
The navel is very fragile in our body, so we must pay attention to protection in our life. The navel is not easy to catch cold. Once caught cold, it may cause diarrhea and even a cold and fever. Therefore, we should pay attention to the warmth of the navel. Some girls who love beauty try to wear clothes that show their navel as little as possible.