Degenerative diseases seldom have simple, singular causes and haemorrhoids are no exception. Some causes are known and some remain unknown. Fortunately, in learning about the main causative factors set out below, it will become apparent that there are steps you can take to give your damaged hemorrhoid veins the best chance to repair themselves. Of most importance is the need to identify and as far as possible, to avoid the conditions that stressed the hemorrhoidal veins in the first place.
As mentioned elsewhere, the anus and rectal area is surrounded by an intricate system of veins designed to quickly drain the area of blood and return this blood to the liver and heart. Any factors that impede the blood flow through the veins will tend to build local pressure which without relief, will distend the blood vessels over time leading to the beginning of the symptoms associated with hemorrhoids.