Why are there dark patches on the bruised skin?

The black green lump is the result of subcutaneous hemorrhage caused by the rupture of the blood vessels. **There are many blood vessels in the body, and the blood vessels are characterized by thin lumens.

Small and thin-walled. These small blood vessels cannot withstand external pressure. If the fall is only on the buttocks, there is generally no black lump because the buttocks have a lot of subcutaneous fat and a large cushioning effect.

If the front of the calf or the outside of the arm and other places with less subcutaneous fat and close bones to ** are hit, then there will inevitably be black green lumps. Because ** is suddenly attacked by external forces, it is followed by hard bones, and the lack of thick and soft subcutaneous fat as a buffer, the blood vessels in the subcutaneous tissue will rupture and bleed from the blood vessels. This blood cannot flow out of the body because it is blocked by **, and can only collect around the broken blood vessels.

Although they are bright red when they first flow out, there is a layer of ** covering on the outside, plus the heme in the blood becomes stasis in the body, and the blood is caused by the rupture of subcutaneous blood vessels and bleeding and leakage to adjacent tissues. so it looks blue-black. This is the reason for the formation of black green blocks.

It is not uncommon to fall while walking. Sometimes it's nothing, you can get up and walk. Sometimes I will fall and can't stand up, in addition to the pain, there will be a black blue at the ** place where the fall is injured.

The black green lump is the result of subcutaneous hemorrhage caused by the rupture of the blood vessels.

**There are many blood vessels in the body, and they all share the same characteristic - small lumen and thin walls. These small blood vessels cannot withstand external pressure. If we fall and only hit the buttocks, there will generally be no black lumps, because the buttocks have a lot of subcutaneous fat and a large cushioning effect.

If we have less subcutaneous fat in the front of our calves or the outside of our arms, and the bones are hit by the place where the ** is close together, then there will inevitably be black green lumps. Because ** is suddenly attacked by an external force and it is followed by a hard bone, without a thick and soft subcutaneous fat as a buffer, the blood vessels in the subcutaneous tissue will rupture and bleed from the blood vessels.

We know that if the ** is cut by a knife, bright red blood will flow out of the wound, but the blood flowing out of the subcutaneous blood vessels cannot flow out of the body because it is blocked by **, and can only.

Gather around the broken blood vessels. Although it was also bright red when it first flowed out, there was a layer of ** covering on the outside, and the heme in the blood changed in the body, so it looked blue-black. This is the reason for the formation of black green blocks.

Bruising is caused by bleeding under the skin, and the oxygen in the blood is depleted, so it has a bluish-purple color. If the bruise is due to an impact, such as a hard object that spills blood from the blood vessels under the skin, the bruise will appear within a few minutes. Sometimes, bleeding may come from deep within the body, such as from a broken bone in an arm or leg, and bruising usually does not appear until several days after the beat.

Putting something cold, such as an ice pack, on top of the bruise can reduce the pain. A few days after the bruising appears, the bruise gradually dissipates or is absorbed, and the bruise gradually turns yellow-brown and then heals. Older people are more prone to bruising and heal more slowly.

Bruises on the body are mostly caused by subcutaneous congestion caused by capillary hemorrhage, and are mostly caused by rupture and bleeding of subcutaneous capillaries under the action of external force.

Disease analysis: **Bruising on touching is mostly caused by subcutaneous congestion caused by capillary bleeding, and is mostly caused by rupture and bleeding of subcutaneous capillaries under the action of external force. It is also more common in fever, fire, ruptured capillary hemangioma, blood diseases, etc.

If it is clear where it was encountered, it does not matter if there is a bruise, it is caused by trauma.

Suggestions: But unexplained bruising is not very good, if it appears occasionally, it doesn't matter, but pay attention to observation, if it is often so, you should go to the hospital as soon as possible for a routine blood examination.

Problem Analysis: Hello! If there are frequent bruises on the body, it may be caused by high blood vessel fragility or poor coagulation mechanism, and it is necessary to go to the hospital for blood examination. Suggestions: Pay attention not to exercise vigorously, avoid damage to body tissues, and eat more vitamin C.

foods that help control the development of symptoms. According to the results of the examination, it is effective under the guidance of a doctor**.

Because of the bruise, the capillaries of the subcutaneous tissue are bruised. Therefore, after the bump, there will be black green blocks.