The treatment of hemorrhoidal disease involves both instrumental and surgical techniques (hemorrhoidectomy and hemorrhoidopexy). In 1995, a Japanese author proposed a new treatment technique for stage II (spontaneous reintegration prolapse) or III (digital reintegration prolapse) disease, based on Doppler identification of low perirectal arteries followed by their ligation, via a specific windowed rectoscope. Later, a further modification appeared, allowing patients to be treated at more advanced stages, adding vertical mucopexy to the ligatures along the main bundles. The pathophysiology of hemorrhoidal disease is based on a vascular theory (opening of arteriovenous shunts) and on a mechanical theory (distension of the supporting tissue). Hemorrhoidectomy responds to the first, hemorrhoidopexy to the second. The HAL (Hemorrhoidal Artery Ligation) - RAR (Recto-Anal Repair) technique seeks to treat both vascular (by ligation of the nourishing arteries) and mechanical (by mucopexy of prolapsed bundles) components. The technique first spread to Germany, Russia, Italy, Spain, Australia and England. It has been popularized in France by some authors.