Recurrence of varicose veins is a common problem. Four main reasons fo
r recurrence are discussed: insufficient understanding of venous anato
my and haemodynamics, inadequate preoperative assessment, incorrect or
insufficient surgery and development of new locations of superficial-
to-deep insufficiency. Better insight in the variable anatomy of the v
enous system and better training of junior surgeons in this matter may
improve the results of venous operations. Accurate preoperative asses
sment using (colour) duplex sonography should permit the surgeon to gi
ve the patient a differentiated, individualized treatment. Careful dis
section of the saphenofemoral junction combined with additional stripp
ing of the long saphenous trunk to just below the knee appears to be t
he best way to prevent recurrence from the long saphenous vein in the
thigh. Concerning the short saphenous vein preoperative location of th
e exact level of the saphenopopliteal junction is of major importance
in the prevention of recurrence. In this way, all diagnostic and surgi
cal efforts should aim to minimize recurrence to about only 5% of pati
ents.