What are varicose veins? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12 Students CBSE Exams.

What are varicose veins?

Old people and those who are on their feet for a long time often have varicose veins. In this condition the veins will be twisted, swollen and blue. These are veins that are no longer elastic. They become swollen because the walls of the veins are too weak to withstand the pressure of blood in them.

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