الفهرس 
Acknowledgement
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Abstract
Hemorrhoids are a very common anorectal condition defined as the symptomatic enlargement and distal displacement of the normal anal cushions They affect millions of people around the world, and represent a major medical and socioeconomic problem. Multiple factors have been claimed to be the etiologies of hemorrhoidal development, including constipation and prolonged straining.. haemorrhoidectomy is the standard for grade (III) and grade (IV) hemorrhoids. A number of surgeons believe that by avoiding vascular pedicle ligation (conventional techniques) the chances of secondary bleeding can be decreased .This stimulated the researchers to develop new techniques with a less severe course and faster recovery. Of these instruments, the LigaSure vessel sealing system has been recently introduced as a tool conceived to upgrade the conventional treatment of haemorrhoids. It is an electro surgery technology for sealing blood vessels of up to 7mm in diameter. The technology was introduced in 1998 and since then has been used widely for a variety of laparoscopic and open surgical procedures.. In this study we compared between haemorrhoidectomy by ligasure and conventional surgery including intra operative bleeding, operative time, post-operative pain, bleeding and hospital stay.This study we conducted on 40 patients complaining of grade (III) and grade (IV) hemorrhoids who were admitted to General Surgery department in Assiut University Hospitals over span of one year (from December 2017 to December 2018).