Normally, veins return blood from the rest of your body to your heart. The veins in legs have to work against gravity

• Varicose veins- May be caused by weakened valves (incompetent valves) within the veins that allow blood to pool in your veins instead of traveling to your heart
• Spider veins- Thin, red lines/web like networks of blood vessels on the surface of the skin. A mild form of varicose veins

Varicose veins are twisted, enlarged veins.Any superficial vein may become varicosed

Most common site is legs. Due to standing & walking upright increases the pressure in veins of the lower body.

Veins return blood from the body to the heart, so the blood can be recirculated. To return blood to your heart, the veins in your legs must work against gravity.

Structural aspects in pumping the blood to heart-

• Muscle contractions in your lower legs act as pumps
• Elastic ...