The venous insufficiency condition is not serious in itself but when left untreated the venous insufficiency can become more serious and lead to other serious health issues.
If the venous insufficiency is left untreated it can lead to health issues such as ulcers and bleeding.
Also if the venous insufficiency is left untreated and it gets worse then the venous insufficiency can lead to a life threatening condition known as Deep Vein Thrombosis.
So if you do have venous insufficiency you need to see a doctor and get treatment for it.
Never leave the venous insufficiency untreated because it can be life threatening once it leads to other health issues.