[Life-threatening infection after varicose vein surgery]

Necrotizing fascitis is a rare but life-threatening soft tissue infection difficult to diagnose at early stage. We describe two patient cases, in which the patients developed a severe necrotizing soft tissue infection after varicose vein surgery. A quick and sufficiently radical surgical treatment is the most significant factor improving the prognosis. All surgical procedures may result in rare but severe complications, which should, however, be taken into account when assessing procedural indications and risks.