What Causes Hemorrhoids?

Another theory takes into consideration the pulling force of passing a stool. This would particularly be the case with a hard stool passing through the rectum canal that drags the hemorrhoidal cushions downward. This relates to having an inadequate fiber intake.

Hemorrhoids are known to be more prevalent in the 45 to 65 age group. Another theory suggests that with age, or an aggravating condition, the supporting tissues that are responsible for tying the hemorrhoids to the underlying muscle deteriorates. Over time this allows the hemorrhoidal tissue to slide down into the rectum canal.

It is a physiological fact that enlarged hemorrhoids are associated with elevated pressure in the sphincter, the muscle surrounding the rectum canal, and the hemorrhoids. The sphincter is the muscle area that allows us to control our bowel movements. We do not know if the elevated pressure precedes the enlarged hemorrhoids, or if the enlarged hemorrhoids causes the elevated pressure. If it precedes the hemorrhoids, perhaps increased pressure during a bowel movement in the rectum canal is the cause. This would greatly increase the pulling force of the stool as the theory states above.

Some also believe that there is a genetic predisposition for hemorrhoids. This predisposition could be weak rectum vein walls or valves. Others also believe that humans are more prone to hemorrhoids simply because of our erect posture. This naturally sends more blood to the rectum area making it easier for them to form.