The relatively simple perianal abscess is to be distinguished from the more complex perirectal abscesses. Treatment also differs according to. Background An abscess is an infectious process characterized by a collection of pus surrounded by inflamed tissue. Abscesses can form. If the infection can’t drain, a collection of pus called an abscess may form. Symptoms of an abscess include anal or rectal pain, itching, swelling, and fever.

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Anal abscesses, without treatment, are likely to spread and affect other parts of the body, particularly the groin and rectal lumen. Perianal absess is a common condition that may occur at any age.

This condition may occur in isolation, but is frequently indicative of another underlying disorder, such as Crohn’s disease. StatPearls Publishing; Jan. Etiology Ninety percent of all anorectal abscesses are caused by non-specific obstruction and subsequent infection of the glandular crypts of the rectum or anus. Aust N Z J Surg ; 57 Pearls and Other Issues Horseshoe perianal abscesses are uncommon. Perianal abscesses and fistulas.

Once incision and drainage are performed, there is no need for antibiotic administration unless certain medical issues necessitate the use. Cellulitis may extend beyond the fluctuant area and should be marked. Culturing the wound adalxh not needed if standard follow-up care can be provided after anses incision and drainage.

Anorectal abscess – Wikipedia

This article is about the medical condition. The clinical presentation of perianal sepsis will depend on the anatomical site of the infection. Perianal abscesses are the most common type of anorectal abscesses.


Have you registered with us yet? MRI is the preferred method of imaging as CT scan may miss small abscesses in the immunocompromised patients. This condition is often initially misdiagnosed as hemorrhoidssince this is almost always the cause of any sudden anal discomfort.

He reported yellowish, offensive fluid passing peranus immediately after defecation. Continual packing may be further utilized for healing by secondary intention. Evaluation A physical exam is typically the only requirement for diagnosis. If superficial, abscesses may be fluctuant when palpated. It is useful before completion of procedure to excise a skin flap of the cruciate incision or the tips of the four skin flaps to ensure adequate drainage and prevent premature healing of the skin over the abscess pocket.

Packing may be placed initially for hemostasis. They are abscesses which surround the entire anus. However, evidence from emergency medicine literature reports that packing wounds after draining causes pain to the person and does not decrease the rate of recurrence, bring more rapid healing, or lead to fewer physician visits. Patients note that the onset of this discharge was associated with moderate relief of the pain.

Anorectal abscess

In this situation a seton stitch is very useful. The key to this is in defining local anatomy, allowing ongoing drainage of pus and, where possible, treating fistulae while preserving the integrity of the internal and external sphincters. The anal canal has anal glands that absez to lubricate the canal. Epub Jan 6. This also provides the opportunity to perform a thorough rectal examination and in some cases a rigid sigmoidoscopy to assess for the presence of causative anal fistulae.


Ischiorectal, inter- and intrasphincteric abscesses have been described. Once the abscess has been drained, attempts may be made to eradicate the fistula and control Crohn disease. Pyemic abscesses of kidney. However, approximately two thirds of periana with rectal abscesses treated by incision and drainage, or by spontaneous drainage, will develop a chronic anal fistula and sepsis. Inflammatory Bowel Disease Cohort.

Wikimedia Commons has media related to Abscesses. Even without treatment, skin abscesses rarely result in death, as they will naturally break through the skin.

Abscess – Wikipedia

Chronic anal sepsis Chronic anal sepsis is commonly managed under the joint care of the GP and a colorectal surgeon. Incision and drainage are typically performed in an office setting, or immediately in psrianal emergency department. In the acute phase, most patients undergo incision and drainage of the abscess. Patients with recurrent or complex abscesses should be evaluated for Crohn disease.

Clinical review: Perianal sepsis

They are usually caused by a bacterial infection. If foreign objects are not the cause, incising and draining the abscess is standard treatment.

Perianal abscess in patients with Crohn disease causes significant morbidity.