Pruritus ani is a common condition with multiple causes. Primary causes are thought to be fecal soiling or food irritants. Secondary causes include malignancy, infections including sexually transmitted diseases, benign…

Benign anorectal diseases, such as anal abscesses and fistula, are commonly seen by primary care physicians, gastroenterologists, emergency physicians, general surgeons, and colorectal surgeons. It is important to have a…

Anal fissure is a common anorectal disorder resulting in anal pain and bleeding. Fissures can either heal spontaneously and be classified as acute, or persist for 6 or more weeks…

A good understanding of anorectal physiology is essential for the diagnosis and appropriate treatment of various anorectal disorders, such as fecal incontinence, constipation, and pain. This article reviews the physiology…

The rectum and anus are two anatomically complex organs with diverse pathologies. This article reviews the basic anatomy of the rectum and anus. In addition, it addresses the current radiographic…

To my wife, Kammy, for her constant understanding and unending love and emotional support. And to my sons, Connor, Christopher, and Luke, for making every day a new adventure. (D.J.M.)…

Epidemiologic data have demonstrated that obesity is an important risk factor for the development of gastroesophageal reflux disease (GERD). There is also accumulating data that obesity is associated with complications…

Gastroesophageal reflux disease is a common disorder in all patients but a particular problem in the elderly, for whom the disease often presents with advanced mucosal damage and other complications….