Valve Dysfunction:
Veins in the legs have small valves that help return blood to the heart. When these valves become weak or damaged, blood flows backward and builds up in the veins, causing them to become swollen and thickened.
Standing or sitting for long periods of time:
People who work in a standing position (such as teachers and sales staff) are more likely to have blood pooling in the veins of the legs and increase pressure due to gravity.
Aging:
As we age, the elasticity of the veins decreases and their valves become weak.
Obesity:
As we gain weight, it puts more pressure on the veins in the legs.
Pregnancy:
This condition is often caused by the increased blood volume in the body during pregnancy and the growing uterus putting pressure on the veins in the abdomen.
Genetics:
If your parents or close relatives have varicose veins in your family, you are more likely to develop them.
Hormonal changes:
Hormonal changes in women (especially during pregnancy and menopause) can cause the walls of the veins to become loose.
