|Venous insufficiency of the lower extremities is a condition linked to the weakening of the superficial or deep vein walls. It leads to a dysfunction of the internal valves, which interferes with the blood flow returning to the heart and causes the formation of varicose veins.|
Venous insufficiency is generally superficial.
Deep venous insufficiency is most of the time secondary to a thrombosis or a congenital defect.
|A visible sign of venous insufficiency, varicose veins are dilated and tortuous veins inside which valves, if they exist, no longer play their anti-reflux role. The enlarged veins are found in the superficial venous system. According to their calibre, one speaks of:|
Truncular varicose veins,
Or reticular varicose veins
Muscular hernia not to be confused with varicoses veins
|Intra-dermal dilatations of the venous plexus, thread veins are caused by venous hyper-pressure or capillary fragility.|
Their calibre is variable:
Red telangiectasia have a small diameter (0.1 to 4mm) and are very superficial.
Blue telangiectasia are located deeper in the dermis and have a more important calibre (0.4 to 2 mm).
Telangectiasia do not only pose a cosmetic problem but may be the sign of a deeper venous deficiency.