Hemorrhoids are mostly caused by excessive strain on the anal veins. Some important contributory factors to piles include- Straining during bowel motions: Straining excessively during bowel movements may put unnecessary pressure on the anal veins and lead to piles. Constipation: Characterized by hard, dry stools and infrequent bowel motions, constipation exerts prolonged pressure in... https://mediend.com/blogs-wp/what-is-piles/