Varices y Hemorroides

Hemorrhoids are varicose veins that appear in the veins of venous plexuses hemorroidales that are placed in the rectal canal. 

Hemorrhoids are undoubtedly one of the most common ailments affecting mankind, but clinical experience suggests that many people of both sexes suffer from hemorrhoids and an even greater number have hemorrhoids as asymptomatic. The incidence of hemorrhoids increases apparently with age and it seems likely that at least 50% more than fifty years old suffer some degree of development haemorrhoids. Apparently men suffer from hemorrhoids with a dual-frequency than women.

CLASSIFICATION

Hemorrhoids are classified into internal and external. The first originate in the upper two thirds of the anal canal and the second in the bottom third covered with skin anal or anal himself. In the case had been sufficiently enlarged, internal hemorrhoids are also externally to the anal.

Hemorrhoids internal: Etiology

Internal Hemorrhoids: Etiology

Hemorrhoids internal accompanied by an obvious obstruction Organic venous return of the veins hemorroidales higher (cirrhosis, the portal vein thrombosis, abdominal tumors)
Hemorrhoids idiopathic venous obstruction without obvious organic (inheritance, anatomical and physiological factors, constipation and diarrhea efforts to defecate.)
Epidemiology and diet. Deficiency anal sphincters: alteration of tone esfinteriano.