Piles, likewise called stacks, are protrusions of varicose veins and connective tissue around the canal encompassing inside the rectum. Symptoms are itching, discomfort, bleeding, and swelling. The number one cause is genes (an absence of valves within the hemorrhoidal veins), followed by irregular bowel routines (constipation or diarrhea), and any activity that causes increased intra-abdominal pressure (prolonged straining, lifting, and so on).Piles are categorized as external or internal, and can be staged or graded 1 to 4. Classification of Piles page and or view the Hemorrhoid Surgery Video to see and hear the distinctions in the Goligher pile classification system, and to learn the basics of Pile surgical treatment.