What is the trouble chronic venous insufficiency and what do people have to do to prevent it early on?

Vein pooling: Veins return blood to the heart. Cvi occurs when there is reduced flow or pooling in leg veins, causing leg swelling, inflammation, & ulceration. The most common cause is when the one-way valves don't work well, leading to venous reflux, or back flow, with blood pooling in the veins. This can result from genetic predisposition, pregnancy, injuries or blood clots. See a vein specialist for help.

Venous Insufficiency: Venous insufficiency, or chronic venous reflux, is a condition in which the valves within the veins are weak and defective, allowing blood to stagnate or "pool" with the veins rather than flowing efficiently. This can be caused by a genetic problem with the valves or damage from blood clots. You can sometime prevent it through wearing support stockings and with regular exercise, normal body weight.

CVI: Terminology can be confusing. There is venous insufficiency (vi), or venous reflux as dr. Gotvald said, and there is chronic venous insufficiency (cvi). Cvi indicates that you have had severe reflux for a long time and there is already damage. On the other hand, although reflux is genetically determined and no preventable, if you have vi prevention of progression to cvi might be possible.