Hemorrhoids - Causes
It is mainly caused by the increase in pressure on the veins around the anus or rectum. The main reason for hemorrhoids is straining during the bowel movement which causes veins to swell. Eventually, the swollen veins stretch the surrounding tissues and cause the hemorrhoids to develop. The causes are:
- Straining during bowel movements. Rushing during bowel movement is the main cause for strain.
- Low fiber diet causes the strain during bowel movement which increases pressure inside the blood vessels.
- Persistent diarrhea or constipation.
- Sitting for long periods of time on the toilet.
- Pregnancy is also the main reason which is due to enlarged uterus on the rectum or anus.
- Anal intercourse
- Obesity. Since the excess weight causes the increase in pressure on the pelvic veins.
- Lack of physical activity
- Spinal cord injury and lack of erect posture.
- Loss of pelvic floor muscle tone due to age, pregnancy, childbirth, or surgery.