Understanding Piles: Causes And Triggers Piles, also referred to as swollen veins in the anus area, cause discomfort, irritation, and occasional bleeding. What exactly causes piles? Dr. Sunny Agarwal, a renowned piles doctor in Chembur, understanding the causes of piles is essential for prevention and treatment. Main Causes of Hemorrhoids https://www.behance.net/gallery/223473803/What-Causes-Piles