An anal fistula is an anomalous, inflammatory connection that forms between the anal canal and the skin. In most cases, this develops as a result of an untreated anal abscess. The abscess is caused by an infection, often resulting from a blockage of the anal canal glands. The formation of a fistula allows secretions such as pus, blood, and inflammatory tissue to escape from the internal fistula tract to the outside. This can lead to persistent inflammation and pain. <\/span><\/p>\n There are various types of anal fistulas, which differ in their location and course: <\/span><\/p>\n The development of an anal fistula can extend over months or even years. It often remains unnoticed for a long time, especially if it begins with a small, superficial abscess. Without adequate treatment, however, a complex system of fistula tracts can develop, complicating treatment. <\/span><\/p>\n Understanding the anatomical structures around the anal canal is crucial for comprehending anal fistulas. The anal canal is permeated by glands responsible for regulating moisture and protecting the anal canal. If one of these glands becomes infected or blocked, an abscess can develop, which in the <\/span><\/p>\n worst case leads to a fistula. Since the anal canal is surrounded by several layers of muscles, particularly the internal and external sphincter muscles, the fistula’s course can run through or around these muscles. <\/span><\/p>\n The development of anal fistulas can be promoted by various factors and pre-existing conditions. In most cases, the cause is a bacterial infection leading to an anal abscess. If such an abscess is not treated promptly, a fistula develops from the accumulation of pus and inflamed tissue. However, there are also a variety of other causes and risk factors: <\/span><\/p>\n The symptoms of an anal fistula vary depending on the severity and course of the condition. While some patients experience only mild discomfort, others suffer from chronic pain and recurrent infections. Common symptoms include:<\/span><\/p>\n Many patients report a constant, uncomfortable pressure sensation in the anal area, caused by inflammation and swelling. These symptoms can become chronic if the fistula is not treated. <\/span><\/p>\n The diagnosis of an anal fistula begins with a thorough medical history and physical examination by a specialist in proctology<\/a>. The doctor will examine the anal area and look for signs of an external opening of the fistula or inflammatory processes. As anal fistulas often run deep in the tissue, additional diagnostic measures are required to determine the exact course of the fistula. <\/span><\/p>\n During the physical examination, the doctor will look for visible signs of a fistula. This may be a small opening near the anus from which pus or fluid is draining. Often, the doctor will palpate the fistula tract to determine if there is a connection to the anal canal. <\/span><\/p>\n As many fistulas have complex courses, imaging procedures are essential to determine the exact location and course of the fistula. <\/span><\/p>\n In some cases, during a short operation, the doctor may insert a probe into the fistula tract to check its course. This method is mostly used in conjunction with surgical treatment to fully open and treat the fistula. <\/span><\/p>\n The treatment of anal fistulas depends on the type and severity of the fistula. While smaller and simple fistulas can often be treated conservatively, more complicated or deeper fistulas require surgical intervention. There are various approaches that can be applied, both conservative and surgical. <\/span><\/p>\n In some cases, anal fistulas can be treated conservatively, especially if the fistula is small and does not cause severe discomfort: <\/span><\/p>\n However, most anal fistulas require surgical treatment to completely remove the fistula and promote the healing process. The most common procedures include: <\/span><\/p>\n to view from the inside and treat with a special instrument. This method has the advantage of being very precise and tissue-sparing. <\/span><\/p>\n In addition to the classic surgical procedures, there are also innovative, minimally invasive techniques that are used in the treatment of anal fistulas: <\/span><\/p>\n\n
Anatomical basics <\/b><\/h2>\n
Causes and risk factors <\/b><\/h2>\n
Primary causes <\/b><\/h3>\n
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Secondary causes and risk factors <\/b><\/h3>\n
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Symptoms and complaints <\/b><\/h2>\n
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Diagnosis of an anal fistula <\/b><\/h2>\n
1. clinical examination <\/b><\/h3>\n
2. imaging procedures <\/b><\/h3>\n
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3. fistula probing <\/b><\/h3>\n
Treatment options <\/b><\/h2>\n
1. conservative therapy approaches <\/b><\/h3>\n
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2. surgical procedures <\/b><\/h3>\n
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3. modern technologies <\/b><\/h3>\n
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Risks and complications <\/b><\/h2>\n