Anal Fistula

An anal fistula is an abnormal burrow under the skin that connects the anal canal in the colon to the clamber of the buttocks. Most anal fistulas form in chemical reaction to an anal gland that has developed a pus-filled infection ( abscess ) .


The symptoms of an anal abscess and an anal fistula can be similar and may include :

  • pain and swelling around the anal area
  • Fever and chills

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  • Feeling tired and vomit
  • Redness, tenderness, or itch of the skin around the anal opening
  • Pus drain near the anal open

Who’s at risk

If you develop an anal abscess, you have about a 50 % opportunity of developing an anal fistula. even if your abscess drains on its own, you have about the same risk for a fistula .
Certain conditions that affect your lower digestive nerve pathway or anal area may besides increase your gamble. These include :

  • colitis
  • Crohn ‘s disease
  • chronic diarrhea

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  • Radiation treatment for rectal cancer


If you have symptoms that suggest an anal fistula, your healthcare supplier may refer you to a specialist who specializes in colon and rectal diseases. The specialist will ask about your symptoms and your aesculapian history. During your physical examination, the repair will look for a fistulous withers opening near your anal orifice. He or she may press on the area to see if it is sore and if pus comes out. different methods may be used to help with the diagnosis, such as :

  • Fistula probe. A retentive, thin probe is guided through the outer open of the fistulous withers. A special dye may be injected to find out where the fistulous withers opens up on the inside .
  • Anoscope. This is a special oscilloscope used to look inside your anal canal .
  • Imaging studies. These may include an sonography, which creates an image of the anal area using sound waves. Or they may include an MRI, which makes images of the area by using particular magnets and a computer .


once you have an anal fistula, antibiotics entirely will not cure it. You will need to have surgery to cure the fistulous withers. surgical discussion options include :

  • Fistulotomy. This routine opens up the fistulous withers in a way that allows it to heal from the inside out. It is normally an outpatient operation. This means you go home the same day .
  • Filling the fistula with a special glue or plug. This is a newer type of treatment that closes the inner open of the fistulous withers. The doctor then fills the fistula tunnel with a material that your body will absorb over meter.

  • Reconstructive surgery or surgery that is done in stages. This may be an option in some cases .
  • Seton placement. This procedure involves placing a suture or arctic band ( seton ) in the fistulous withers that is increasingly tightened. It lets the fistulous withers bring around behind the seton and reduces the hazard of dissoluteness .

note : anal fistulas are very coarse in people with Crohn ’ mho disease. For those with both Crohn ‘s disease and a fistulous withers, medical therapy is frequently tried before surgery .

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