What are the causes of hemroids?
Two main factors are responsible -together- for the development of hemroids. A) Genetically predetermined weakness of the anorectal veins. B) Acquired increase of the pressure inside the anorectal veins. Causes of increased pressure include the following. • Straining to pass stools as in constipation and diarrhea. • Pregnancy during the last 6 months, due to increased pressure on the pelvic veins by the pregnant uterus. Straining to pass the baby during delivery makes the hemroids worse. • Liver diseases causing portal hypertension. What are the types of hemroids? Development of Hemroids As mentioned above, the anorectal veins are grouped into 2 sets of veins; internal hemorrhoidal veins and external hemorrhoidal veins. Therefore hemorrhoids are classified into 2 types according to which group of veins is affected; internal hemorrhoids and external hemorrhoids. Internal hemroids: they occur due to increased pressure in the internal hemorrhoidal veins, leading to their swelling. Interna
