Intravenous infusion is a method used in the treatment of many diseases. Some drugs are injected into the body to fight against viruses. This treatment effect is better. Generally, people choose to have an infusion in the hands because the blood vessels on the hands are easier to find, especially when the blood circulation is poor and the blood vessels on the hands are more obvious. Let’s understand why the blood vessels on the back of the hand are blue in color. 1. Overview Some people may find that the blood vessels on the back of their hands are blue. The blue veins on their hands are obvious. This is not a disease, but a normal physiological phenomenon. In fact, not only the hands, but some people's entire arms are very obvious. These blue veins are actually veins. Venous blood flows in them, which is darker in color, so they appear blue. This is a manifestation of superficial veins, which is related to physique or a thinner subcutaneous fat layer. If you have well-developed muscles, exercise regularly, and have less fat, your blood vessels will be very obvious! It is normal for blood vessels to be obvious. 2. Steps/Methods: Why are the blood vessels on the back of the hand blue? 1. The veins on the back of the hand are obviously prominent. If there is no organic lesion of the blood vessels, it is a vascular disease. The blood vessels on the back of the hand are obviously visible, which is a normal physiological phenomenon. If the arm is naturally lowered, the protrusion is obvious, which is related to hemodynamics. Young people generally move their hands more, so they need more blood supply, and of course the blood flow back is relatively more, resulting in obvious blood vessels on the back of the hand as described. 2. In order to prevent blood from flowing back, the veins have nodes like valves, which prevent blood from flowing back and make the blood vessels bulge. So you can see that the blood vessels on your hands are blue because the blood contains different amounts of oxygen, which is two colors: bright red and purple. The oxygen content of the veins is low, so it is purple. Through the skin, it will be considered blue. 3. Why do the blood vessels on the back of the hand suddenly turn so blue? The blood vessels on the back of the hand are venous blood. When they are full, the blood vessels can rub against the surface of the skin and the color can deepen to blue. This is a situation of blood vessel filling, which can be seen in both physiological and pathological cases. The veins on the back of the hand may become filled after exercise, fatigue, physical labor, smoking, drinking, strong tea, etc. This is a normal situation 3. Precautions: Pay special attention to the blue blood vessels on the back of your hand If it is because of the superficial skin, then it is a normal phenomenon. However, if there are bulging blood vessels, it is generally considered to be varicose veins and a vascular B-ultrasound examination is required. It is mostly considered to be due to improper living habits or coagulation abnormalities. It is recommended to first check whether there is a possibility of thrombocytopenia, and also pay attention to check whether there is abnormal liver function. In addition, if you eat less vegetables and fruits, a lack of vitamin C may also cause it. So you should eat more vegetables and fruits. Pay attention to a low-salt, low-fat, high-vitamin diet, quit smoking and drinking, avoid spicy food, get more rest and don't overwork. |
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