Leg ulcer is a polyaetiologic condition the successful treatment of which is decisively influenced by correct diagnosis of the underlying cause. About 76% of leg ulcer cases are due to chronic venous insufficiency. Nonhealing venous leg ulcers are the domain of local surgical therapy with a variety of symptomatic and causal surgical methods. Shave therapy is the treatment of choice, with relatively low invasiveness and good long-term results. Today subfascial endoscopic perforator vein surgery and the surgical treatment of fascia cruris (fasciotomy, fasciectomy) are used rarely but increasingly indicated. Long-lasting healing is decisively influenced by thorough follow-up treatment with complex physical compression treatment and exercises following the surgical treatment of nonhealing venous leg ulcers.