Venous insufficiency happens in the event the veins from the lessen extremities can not correctly force blood again to the heart. This problem is typically chronic in character and arises once the leg veins become enlarged (called venous hypertension) as well as their valves are not able to close effectively. https://www.sgvascularctr.com/swollen-leg-why-do-i-have-it-and-what-can-i-do/