['The relationship between deep and superficial venous reflux and healing of venous ulceration by non-operative compression therapy has not been studied previously.', 'A total of 155 patients with chronic venous ulcers underwent duplex ultrasonography before treatment with compression bandaging at a hospital-based venous clinic.', 'At 24 weeks, 104 (67 per cent) of ulcers had healed. There was no significant difference in the pattern of either deep or superficial venous reflux between healed and non-healed ulcers except with respect to the popliteal vein. In healed ulcers, 39 scans (38 per cent) indicated competence of the above-knee popliteal vein compared with five (10 per cent) in the non-healing group (P < 0.001, chi 2 test). Similarly, 43 scans (42 per cent) showed below-knee popliteal vein competence in the healed ulcers compared with only five (10 per cent) performed in legs remaining ulcerated (P < 0.001, chi 2 test).'] Does popliteal vein reflux reduce the healing of chronic venous ulcer?