Although proximal thigh GSV SVT and SSV SVT approaching the popliteal vein occurs not infrequently, the best treatment regimen based on its underlying pathophysiology and resolution rate remains controversial. More recent investigations do offer some guidelines. While anticoagulation has become the mainstay of treatment for SVT involving these two locations, care should be exercised by the physician in diagnosing SVT to avoid the complications that may ensue due to the nature of the SVT. Further examination of the unresolved issues involving SVT is fundamental.