(1) Women and men who are sedentary in the office, in air-conditioned environments for long periods of time, and who are sedentary in front of computers;
(2) Pregnant women The uterus increases in size during pregnancy and presses on the iliac veins, which causes an increase in venous pressure and the occurrence of varicose veins;
(3) Patients suffering from deep venous thrombosis The blood flow in deep veins is blocked, the burden on superficial veins is increased, and the superficial veins are compensated to expand;
(4) Workers who are engaged in frequent standing Teachers, salespersons, Miss Manners, and workers who need to stand for a long time, due to the effect of gravity, the pressure of blood is greater on the venous valves, which in the long run makes the function of venous valves impaired, and the blood can not be returned normally, and the onset of varicose veins occurs.
(5) Injury to veins of the calf Due to injury to the wall of superficial veins and the valves of the vein wall, the healing may affect the elasticity of the wall and the function of the valves, and varicose veins occur at the place of injury.
(6) People who bear weight for a long time, such as those who are engaged in physical labor or athletes.