Hemorrhoids, also understood as stacks, are protrusions of varicose veins and connective tissue around the canal extending to inside the rectum. Signs are itching, pain, bleeding, and swelling. The primary cause is genes (an absence of valves within the hemorrhoidal veins), followed by irregular bowel routines (irregularity or diarrhea), and any activity that causes increased intra-abdominal pressure (prolonged straining, raising, etc.).Hemorrhoids are categorized as external or internal, and can be staged or graded 1 to 4. Category of Hemorrhoids page and or watch the Hemorrhoid Surgical treatment Video to see and hear the distinctions in the Goligher hemorrhoid category system, and to learn the basics of Hemorrhoid surgical treatment.