A laparoscopic varicocele ligation was performed in 49 men with a clinically proven varicocele. Patients were treated predominantly on a day case or overnight basis with minimal post-operative morbidity. Identification of the testicular artery was aided by a laparoscopic Doppler probe in the majority of patients and preserved in 39 cases. The varicocele persisted in 7 patients, 4 of whom have subsequently had an inguinal exploration confirming a missed testicular vein as the source. In all 7 patients the artery was identified without the use of the Doppler probe, this being suggestive of misidentification of the vessels at laparoscopy. The complications included 4 wound infections, 1 scrotal haematoma and 1 vasal injury which necessitated an open vasovasostomy. Laparoscopic varicocele ligation is a simple and safe technique, causing minimal morbidity and enabling a rapid return to normal activity. The success rate can be improved by accurate identification of the testicular vessels with the use of a laparoscopic Doppler probe.