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Anal fistula is a chronic abnormal communication between the anal canal and the perianal skin. [1] An anal fistula can be described as a narrow tunnel with its internal opening in the anal canal and its external opening in the skin near the anus. [2] Anal fistulae commonly occur in people with a history of anal abscesses. They can form when ...
Doctors uses a variety of tools and techniques to evaluate the type of anorectal disorder, including digital and anoscopic investigations, palpations, and palpitations.The initial examination can be painful because a gastroenterologist will need to spread the buttocks and probe the painful area, which may require a local anesthetic.
St Mark's Hospital, The National Bowel Hospital (informally St Mark's) is a hospital in Park Royal, Greater London, England.Managed by London North West University Healthcare NHS Trust, it is the only hospital in the world to specialise entirely in intestinal and colorectal medicine and is a national and international referral centre for intestinal and colorectal disorders. [1]
Rectovaginal fistulas are often the result of trauma during childbirth (in which case it is known as obstetric fistula), with increased risk associated with significant lacerations or interventions are used such as episiotomy or operative (forceps/vacuum extraction) deliveries [2] or in situations where there is inadequate health care, such as in some developing countries.
Depending on the level of obstruction, bowel obstruction can present with abdominal pain, abdominal distension, and constipation.Bowel obstruction may be complicated by dehydration and electrolyte abnormalities due to vomiting; respiratory compromise from pressure on the diaphragm by a distended abdomen, or aspiration of vomitus; bowel ischemia or perforation from prolonged distension or ...
Anal warts are usually transmitted by unprotected, anoreceptive intercourse. Anal warts may be asymptomatic, [24] or may cause rectal discharge, anal wetness, rectal bleeding, and pruritus ani. [14] Lesions can also occur within the anal canal, where they are more likely to create symptoms. [citation needed]
A rectovestibular fistula, also referred to simply as a vestibular fistula, is an anorectal congenital disorder where an abnormal connection exists between the rectum and the vulval vestibule of the female genitalia. If the fistula occurs within the hymen, it is known as a rectovaginal fistula, a much rarer condition. [1]
Goodsall's rule relates the external opening (in the perianal skin) of an anal fistula to its internal opening (in the anal canal). It states that if the perianal skin opening is posterior to the transverse anal line, the fistulous tract will open into the anal canal in the midline posteriorly, sometimes taking a curvilinear course.