20% of adults will be troubled by varicose veins, which are commonly known as "earthworm legs" by the common people. Office people often sit for half a day or even a whole day every day, blood is easy to block the lower limbs.
People who usually need to stand for a long time due to work and other reasons, such as teachers, cooks, sanitation workers, urban white-collar workers and other high-risk groups are recommended to do regular vascular screening.