Question

what are varicose veins? and what causes their development?​

Answer 1

Answer:

Varicose veins mainly develop when the veins in the legs are weakened, causing it to gradually become twisted and swell. The malfunctioning of one-way vein valves causes the problem. These valves are meant for preventing backward flow of blood in the veins, thus facilitating flow of blood to the heart.

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Answer 2

Answer:

HELLO , PLEASE REFER TO THE ANSWER BELOW

Explanation:

Varicose veins are a common condition caused by weak or damaged vein walls and valves. Varicose veins may form whenever blood pressure increases inside your veins. This can happen because of pregnancy, constipation, a tumor, or overweight and obesity.