In the free standing center of ambulatory surgery of Nice, proctology with carbon dioxide laser is a basic activity. Among 177 cases of proctology operated during 1989, we find 91 hemorroïdectomies realized with CO2 laser in strictly ambulatory surgery (no hospitalisation). This work's interet is demonstrating adaptation to the laser makes many advantages to the classic operation of Milligan and Morgan: simplification of the surgical technique easy post-operative course, no hospitalisation and quicker return to work, leading to a lower cost of this pathology. Complications are rare and excellent results noted.