Varicose veins, commonly known as "fried tendon legs", is the most common disease of the venous system, especially in recent years, the incidence trend of this disease is younger, so that small Mai deeply worried ah, today small Mai will introduce the causes of varicose veins and precautions to help everyone do a good job of prevention.
1. Physiological factors
(1) Weak venous wall and valve defects: the venous wall is relatively weak and can be expanded under venous pressure. The expansion of the valve sinus leads to the original venous valve is not tightly closed, resulting in relatively incomplete valve function and blood reflux. Valve dysplasia or absence, also can not play an effective role in preventing reflux, leading to disease.
(2) Sustained increase in venous pressure: Venous blood itself due to the action of gravity, a certain pressure on the valve, under normal circumstances will not cause damage to it, but when the venous pressure continues to rise, the valve will bear excessive pressure, gradually relax, prolapse, so that it is not fully closed. This is more common in long-term standing work, heavy physical labor, pregnancy, chronic cough, long-term constipation and so on.
2. Age factor
Since the limb venous pressure only reaches the highest pressure when the body length is the highest, the body is not high before puberty, so the vein diameter is small, which can prevent venous dilation, so although there are serious varicose veins before the age of 30, but most of them are with the increase of age, the vein wall and valve gradually lose their tension, and the symptoms are aggravated to force patients to seek medical attention.
3. Career factors
People who are engaged in standing for a long time, sitting for a long time, exercising or working with heavy loads, such as teachers, surgeons, nurses, hairdressers, salesgirls, cooks, restaurant waiters and other professions that require prolonged standing are all at high risk.
4. Genetic factors
This disease also carries a certain genetic factor, so for some patients with a family history, attention should be paid to the prevention of varicose veins, because genetic factors/primary varicose veins are characterized by familial characteristics, which is a factor leading to the cause of varicose veins.
5. Other factors
Varicose veins are more common in women and may be induced or aggravated by pregnancy. However, in women who are not pregnant, the incidence is also higher than that of men (male: female = 1:3), which may be due to the wider pelvis of women, excessive bending of the vascular structure, and increased congestion of the veins in the pelvis during menstruation, pregnancy and menopause. Another reason for the risk of varicose veins during pregnancy is that the tension in the superficial veins of the limbs is reduced during pregnancy, making them prone to dilation, which can be restored after delivery.