What Causes Hemorrhoids

During the normal process of emptying the bowels, veins of the anal canal are flushed with blood and swell so as to pass the stools. But, conditions such as constipation that result in formation of hard stools cause extensive swelling of the veins. Repeated swelling of the veins causes stretching of the anal tissues and forms hemorrhoids. Hemorrhoids may be internal hemorrhoids that are formed within the anal canal close to the rectum or external hemorrhoids formed at the anus. Swelling and stretching of the anal tissue causes discomfort and unbearable pain. In few cases, bleeding may also be observed. It is possible to combat hemorrhoids by knowing what causes hemorrhoids.

What causes hemorrhoids?

What causes hemorrhoids is exactly not known. But, certain factors are found to increase the risk for hemorrhoids.

Poor dietary habits: regular intake of processed foods containing low fiber increases the risk for constipation forming hard stools. Hard stools cause extensive stretching of the anal tissue increasing the risk for hemorrhoids. Forceful emptying of hard stools may also tear the sensitive mucosal lining of the anal canal resulting in bleeding.

Irregular bowel habits: It is very important to empty the bowels immediately after urge to defecate arises. Neglecting the urge to pass the stools causes the urge to disappear. In the mean time the stools become hard that can be eliminated only by straining. Take time to empty the bowels do not rush as rushing causes straining and exerts pressure on anal veins. Try to maintain a routine to pass the stools.

Sitting for long period: Sitting or standing at work for long hours exerts pressure on anal veins forming hemorrhoids. Sitting on toilet seat for long time is also one of the factors contributing to hemorrhoid formation.

Diarrhea: Persistent diarrhea also exerts pressure on anal veins similar to constipation. Increased pressure on the anal sphincter, the muscle surrounding the anus while passing hard stools causes expansion and prolapse of the anal tissue.

what causes hemorrhoids

Pregnancy and labor: Many woman wonder what causes hemorrhoids during pregnancy. Pressure exerted by the growing fetus on the pelvic muscles and increased blood flow in to the pelvic region due to hormonal changes aggravates hemorrhoid formation. Traumatic labor exerts extensive pressure on anus while pushing the baby.

Increased pressure on pelvic veins: Obesity and tumors in the pelvic region exert pressure on the pelvic veins increasing risk for hemorrhoids.

Aging: Degradation of the tissue holding the hemorrhoids to the anal canal muscles due to aging causes protrusion of hemorrhoid tissue that drops in to the anal canal.

Heart and liver diseases: Suffering with liver and heart diseases for a long time causes increased blood flow to the abdomen and pelvic regions. Enlargement of anal veins due to pressure exerted by blood accumulated in these regions and increased venous pressure is what causes hemorrhoids in patients suffering with chronic cardiac and liver diseases.

Low physical activity: People who remain sluggish whole day without much physical activity or practicing workouts have poor gastrointestinal activity. This in turn forms hard stools and hemorrhoids.


If you are suffering with hemorrhoids and not sure what is causing hemorrhoids then consult the physician to identify the cause for the disease. Planning a treatment strategy that rightly targets the cause offers permanent relief. Initiating the treatment early can eliminate the risk painful surgical and non-surgical procedures.