Hemorrhoid - Introduction

Introduction

l  Very common disease, affecting more than 80% of adult at sometimes in their life

l  In the past, hemorrhoid was considered as varicose vein

l  Recently, it is defined as a vascular cushion resulted from downward displacement of anal cushion which are blood-filled spaces supported by a matrix of fibrous tissue and smooth muscle located in lower rectum

l  Resulted from chronic straining, leading to local congestion

-          Chronic constipation, diarrhea, prolonged attempts at defecation, prolonged sitting and standing, lack of fibers in diet, etc

-          Local congestion à anal cushions lose their attachment to the underlying rectal wall à prolapse of internal hemorrhoidal tissue through the anal canal

-          As these hemorrhoids engorge à overlying mucosa becomes more friable and the vasculature increases à rectal bleeding

l  Hemorrhoid is classified as internal, external or internoexternal in relation to dentate line at lower rectum

-          Internal hemorrhoids are located above the dentate line

-          External hemorrhoids are located below the dentate line

-          Interno-external hemorrhoids are extended from above to below the dentate line 

Reference: psclinic.com.hk/ 

The information aims to provide educational purpose only. Anyone reading it should consult

Surgery Specialist before considering treatment and should not rely on the information

above.