|Piles, also called piles, are protrusions of varicose veins and connective tissue around the canal reaching inside the rectum. Symptoms are itching, pain, bleeding, and swelling. The number one cause is genes (a lack of valves within the hemorrhoidal veins), followed by irregular bowel routines (irregularity or diarrhea), and any activity that causes increased intra-abdominal pressure (extended straining, raising, etc.).Piles are categorized as external or internal, and can be staged or graded 1 to 4. Category of Hemorrhoids page and or enjoy the Hemorrhoid Surgery Video to see and hear the differences in the Goligher hemorrhoid category system, and to discover the basics of Hemorrhoid surgery.