Why do my knees turn blue?

Sometimes, when we look at our knees, we will find that the color of our knees is darker or even blue. In fact, generally speaking, if our knees turn blue, it is likely because of a problem with blood pressure circulation caused by the impact. But sometimes, if there is no impact, our knees may turn blue due to other reasons. So, what causes blue knees?

Excluding reasons such as bruises caused by external injuries, almost everyone has this symptom. If you look at the entire leg from a distance of five or six meters, it will be very obvious.

First of all, please rest assured that this is not a pathological manifestation. The color difference at the knees is common among the crowd. Of course, entertainers' legs are not included. Their legs are white and beautiful. I heard that some stars' legs are specially made up to make them look white, long and straight, making everyone envious. It is the dream of many people to have a pair of long legs!

The causes of blue or black knees can be divided into two categories: one is related to the human body structure, and the other is acquired.

From the perspective of human body structure, the knee is part of the knee joint. Most of this area is bone and is wrapped in skin tissue. The local blood is not as abundant as other parts, and blood can play a nutritional role. There is less blood in the knee, and the skin is relatively lacking in nourishment. In addition, there is more friction in the knee joint, and the stratum corneum is thick. The stratum corneum is composed of dead cells in the human body and contains a lot of pigments, which makes it appear darker than the surrounding skin.

From an acquired perspective, the knee joint bears the movement of the joint head. People will directly use the joint to assist in exerting force. Long-term use will form a thick protective layer on the surface of the skin, namely the stratum corneum. In addition, the cleaning of the knee joint is often skipped or just rinsed casually. It seems to be related to cleanliness.

Therefore, methods to eliminate or reduce the blackening or blueing of the knees have emerged. You can massage the skin at the joints more to promote local blood flow. You can also properly clean the stratum corneum at the joints. Be careful not to over-clean the stratum corneum that needs to be protected. The fastest way is of course to use makeup. In an emergency, girls who love beauty can choose makeup to save their knees.