information:filtering, information:classification, structural:summarization
Venous insufficiency

Venous insufficiency is the most common disorder of the venous system, and is usually manifested as either spider veins or varicose veins. Several treatments are available including endovenous thermal ablation (using radiofrequency or laser energy), vein stripping, ambulatory phlebectomy, foam sclerotherapy, laser, or compression.

Postphlebitic syndrome is venous insufficiency that develops following deep vein thrombosis.