What causes the venous valve?

summary

Vein is one of the three blood vessels in human body. Of the three vessels, only veins have valves. Veins are responsible for bringing blood from all parts of the body back to the heart, so there are valves in the veins to prevent blood from flowing back. When the blood flows to the heart, the valve opens, allowing the blood to flow to the heart. When the blood flows away, the valve closes. The great saphenous vein usually has 4-15 pairs of valves, with an average of 7-8 pairs. There are 5-8 pairs of valves below the knee; There are 2-7 pairs of valves in the femoral part. What causes the venous valve? Now let me tell you something.

What causes the venous valve?

The first situation is that young office workers generally do not pay enough attention to this, and often maintain a long-term working attitude from morning to night, which leads to blood stasis in the legs and feet for a long time. After a long time, there will be swelling, acid swelling discomfort, stasis of venous blood red blood cell decomposition, pigmentation.

The second reason is that the venous valve is very thin, soft and transparent. In the case of blood flowing to the heart, the valve adheres to the wall of the vein, and the vein is unobstructed. When the venous pressure increases due to standing or other reasons, the venous blood will flow backward, leading to disease.

In the third case, the disease is more common in the elderly and postoperative patients. The venous wall begins to degenerate and varicose veins are also prone to occur. Although the vein itself has no pathological changes, it is prone to varicose veins due to the obstruction of blood return and the increase of venous pressure.

matters needing attention

At ordinary times, we should pay attention to the lower extremity vascular health, and do a good job in the prevention of varicose veins. When you need to sit and stand for a long time, get up and do a little exercise or stretch to avoid increasing the burden on the vein.