Why is a perianal abscess so painful?

Written by Chen Tian Jing
Colorectal Surgery
Updated on December 19, 2024
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During the acute phase of a perianal abscess, the intense pain is mainly due to the formation of an abscess and pus pockets in the subcutaneous area around the anus. The pus within these cavities cannot rupture, causing localized skin nerves to experience pecking-like or jumping pain. The pain from a perianal abscess is generally unbearable for patients, necessitating prompt surgical treatment. The surgical approach for a perianal abscess primarily involves incision and drainage, followed by debridement of the abscess cavity. It is important to note that postoperative disinfection and dressing changes of the local wound are crucial to prevent false healing of the wound.

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Written by Chen Tian Jing
Colorectal Surgery
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Is the recurrence rate of perianal abscess high?

Perianal abscess is an acute infectious disease localized around the anus. If a perianal abscess acutely erupts, it requires prompt surgical treatment. Without surgery, there is a possibility of recurrent episodes of perianal abscesses or the formation of anal fistulas due to the rupture of the abscess. After surgery for a perianal abscess, it is also important to pay attention to a light diet and regular bowel movements. It is crucial not to allow the stool to become too dry, nor to experience diarrhea. Recurrent diarrhea can lead to infection of the anal crypts, thereby causing perianal abscesses and local infections. Therefore, the care of a perianal abscess is very important; maintaining good dietary and bowel habits is essential to prevent recurrence of the abscess.

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Written by Chen Tian Jing
Colorectal Surgery
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Which is more serious, perianal abscess or hemorrhoids?

Perianal abscesses and hemorrhoids are two different types of anorectal diseases. During the acute phase of a perianal abscess, the urgency of the condition is greater than that of hemorrhoids. If active surgical intervention and incisional drainage and debridement are not carried out for a perianal abscess, it can lead to further enlargement of the pus cavity, increasing the size of the infected wound and the focus of infection, causing more severe pain and symptoms of systemic infection in the patient. Hemorrhoids, on the other hand, can be managed with conservative medication to alleviate symptoms. Surgical treatment is considered only when there are recurrent flare-ups, severe pain, significant prolapse, and worsening bleeding.

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Written by Chen Tian Jing
Colorectal Surgery
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Can a perianal abscess heal by itself without rupturing?

Perianal abscesses that have not ruptured generally involve two scenarios. First, the application of topical or oral antibiotics may eliminate the local abscess, but some infection foci and swelling may persist, with a possibility of recurrence later. The second scenario occurs when the abscess does not rupture, but the pus chamber further expands, leading to an increase in the area of infection and thus worsening systemic infection symptoms. Once a perianal abscess is detected, it is necessary to treat it promptly. If an early-stage typical pus chamber has not formed, antibiotics can be used for symptomatic treatment to reduce local inflammation. If a clear pus chamber has formed and is accompanied by pus, it is advisable to promptly perform an incision and drainage of the abscess, followed by a definitive surgical debridement.

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Written by Chen Tian Jing
Colorectal Surgery
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Can a perianal abscess be completely cured?

The primary cause of perianal abscesses is the repeated inflammatory stimulation near the dentate line of the anus, leading to infection. As the infection worsens, localized foci of infection form, resulting in the formation of pus and abscesses. Once a perianal abscess has formed, the patient will experience severe pain and will require prompt surgical treatment. If a definitive one-time surgery for the perianal abscess is chosen, it can be completely treated. Post-surgery, simply changing the dressing on the local wound will suffice, and the wound is expected to fully heal and recover. However, if an incision and drainage surgery was performed for the perianal abscess, a fistula may have already formed, requiring a second surgery for cutting and threading the fistula.

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Written by Li Jiao Yan
Neonatology
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Causes of perianal abscess formation in babies

In pediatric outpatient surgery, perianal abscesses are not uncommon, and many parents visit the hospital daily for this issue. They wait, register, and change dressings. Once the wound heals, it often recurs after a while, leading to repeated incisions and drainage, persisting for several months. Eventually, the doctors say a fistula has formed and surgery is required. What exactly causes such troublesome perianal abscesses? The cause of perianal abscesses is not completely clear, but many affected children have been found to have deeper anal crypts than normal, so it's speculated that it may be related to this abnormality. In children under two years old, perianal abscesses mostly occur in boys. Some studies suggest that testosterone levels are higher in boys aged 1-3 months, coinciding with a peak period for perianal abscess incidences, leading to speculation that it may be related to the child’s hormone levels. In children over two years old, there is less gender bias in the incidence of perianal abscesses, and some cases are secondary to Crohn’s disease.