Causes of bruises caused by bumps

Some people often get bruises on their bodies. What are the reasons why bruises are easily caused by bumps and bumps on the body? In fact, there are many reasons why bruises appear on the body. It may be caused by accidental bumps, or it may be caused by diseases, such as thrombocytopenia, coagulation disorders, capillary fragility and other diseases. If it is caused by a disease, you need to go to the hospital for treatment. You can also pay attention to your diet and use more foods rich in vitamin C for conditioning.

A bruise is caused by broken blood vessels in the skin, causing bleeding. In order to meet the nourishment needs of various tissues and organs of the human body, our body is covered with blood vessels. These blood vessels of various sizes are distributed throughout the body like a dense "net". The same is true of the blood vessels in the skin, which are very numerous and very dense, and they are thick and thin and intertwined together. In some thin people, we can easily see blue blood vessels. These blood vessels are thick blood vessels. There are more very thin blood vessels in the skin, which we call capillaries. Under normal circumstances, capillaries are invisible, and many of them are distributed in the superficial skin layer. The lumen of these capillaries is small and the walls are very thin. They cannot withstand the "strong" pressure from the outside world. The capillaries will rupture with a slight collision, and we cannot even remember how the collision occurred.

The blood in the blood vessels is still bright red, so why does subcutaneous bleeding turn into a bruise? The blood appears red because of the red blood cells. Red blood cells contain a component called hemoglobin, which transports oxygen to all parts of the body. The combination of oxygen and hemoglobin forms bright red blood. This is why we see arteries in red and veins in blue in medical books. However, when a blood vessel ruptures and flows into the skin tissue, the hemoglobin cannot return to the lungs to combine with oxygen and will turn purple. As the hemoglobin is slowly broken down and undergoes chemical changes with other substances in the body, this part of the tissue will appear bluish-purple.

Careful people will also find that : when a blood vessel ruptures and bleeds, the bruise usually appears dark red or purple at first, then turns to bluish purple, then slowly turns to yellowish brown, and finally slowly returns to the original color of the skin. This is the process by which hemoglobin is gradually absorbed.

Bumps and collisions are just a small external cause of bruises . What other factors can cause bruises? Several major factors deserve our attention:

1. Thrombocytopenia Platelets are one of the most important factors in blood coagulation. The more the platelets decrease, the greater the chance of bleeding, and the greater the possibility of continuous bleeding.

2. Pathological changes such as increased capillary fragility If lesions such as increased capillary fragility occur, it is more likely to cause capillary damage and blood will flow out of the blood vessels.

3. Coagulation disorder There are more than a dozen coagulation factors in the human body. The lack of any coagulation factor can cause bleeding. For example, hemophilia is caused by a lack of clotting factor VIII. If bruises often appear on the body and no abnormalities are found after various examinations at the hospital, it is necessary to consider whether

4. Whether it is related to medication. Certain medications taken by patients with cardiovascular disease can cause coagulation disorders, such as aspirin or other anticoagulants, which can affect the blood's ability to coagulate. For example, long-term and excessive use of health supplements containing fish oil and ginkgo can also cause problems with blood coagulation, prolonging the time it takes to stop bleeding and easily causing bruising. In addition, there are also drugs that cause vascular fragility, such as glucocorticoids. Long-term use will increase vascular fragility, making vascular rupture and bleeding more likely to occur after a collision.