Why is the color of blood vessel on the back of hand cyan

summary

Some people may find that the blood vessels on the back of their hands are cyan, and the veins on their hands are obvious. This is not a disease, but a normal physiological phenomenon. In fact, it is not only the hand, but also the whole arm of some people. These veins are actually venous blood vessels, and they are dark in color, so they are cyan. This is the manifestation of superficial vein, which is related to the constitution or the thin subcutaneous fat layer. If muscle developed, long-term exercise, less fat, blood vessels will be very obvious! The blood vessels are obvious and normal.

Why is the color of blood vessel on the back of hand cyan

First, the veins on the back of the hand are obviously prominent. If there is no organic lesion of the vessels, it is a vascular disease. The veins on the back of the hand are obviously visible, which is a normal physiological phenomenon. For example, when the arm is naturally downward, the process is obvious, which is related to hemodynamics. Young people generally have more hand activities and need to supply more blood. Of course, there is relatively more backflow. The described blood vessels on the back of the hand are obvious

Second: in order to prevent the blood from flowing back, there will be nodes like valves to prevent the blood from flowing back, which will make the blood vessels bulge. So you can see the blood vessels on your hands. The reason why they are cyan is because the blood contains different amounts of oxygen. They are bright red and purplish red. The oxygen content of the blood vessels is low, so they are purplish red. Through the skin, they will be considered cyan

Third: how does the blood vessel on the back of the hand suddenly turn so blue? The blood vessel on the back of the hand itself is venous blood. When it is filled, the blood vessel can rub the surface of the skin, and the color can be deepened. This is the situation of blood vessel filling, which can be seen in physiological and pathological aspects. If it is after exercise, tired, physical labor, tobacco, alcohol, strong tea and other stimulation, the dorsal vein of the hand can be filled. This is normal

matters needing attention

If it's because of superficial skin, it's normal. But if there's a bulge in the blood vessels, it's generally considered that the varicose vessels need to be examined by B-ultrasound, mostly because of improper living habits or abnormal blood coagulation. It is suggested to first check whether there is the possibility of thrombocytopenia, but also pay attention to check whether there is abnormal liver function, in addition, if you eat less vegetables and fruits, lack of vitamin C may also lead to. So we should eat more vegetables and fruits. At ordinary times, pay attention to low salt, low fat and high vitamin diet, quit smoking and drinking, avoid spicy food, take more rest and don't get tired,