Effectiveness of closed haemorroidectomy in third degree haemorroids

[摘要] Abstract Introduction: Haemorroids are engorged vascular cushions found within the submucosa of the anal canal. They consist of a sacculated venous plexus with a rich arterial supply supported by a fibromuscular connective tissue. The exact prevalence is unknown as many peoples do not seek medical attention; however, it may be somewhere in the region of 4-36% depending on population. The incidence is higher in Western populations and is low in sub-Saharan Africa. They normally contribute to the .

[学科分类] 外科医学