Introduction and history -- Causes of hemorrhoids -- Anatomy of hemorrhoids -- Pathophysiology of hemorrhoidal disease -- Clinical presentation of hemorrhoidal disease -- Hemorrhoids presenting with complications -- Diagnosis and classification of hemorrhoids -- Conservative treatment for hemorrhoids -- Office treatment of hemorrhoids -- Surgical treatment of hemorrhoids -- Complications of hemorrhoid surgery -- Hemorrhoids in special situations -- External hemorrhoidal disease -- Frequently asked questions about hemorrhoids -- Hemorrhoids: point to ponder.