Has the perianal abscess that was drained a month ago and is neither painful nor itchy healed?

Written by Yu Xu Chao
Colorectal Surgery
Updated on February 24, 2025
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This situation often shows good post-operative recovery. Whether this situation is completely resolved depends on whether anal fistulas develop later, as most perianal abscesses drained can easily form anal fistulas. This is because drainage of perianal abscesses merely removes pus and secretions as much as possible, but does not completely clear the internal opening of the abscess and infected tissues. Thus, anal fistulas are likely to form later, and the patient needs to continue monitoring. Moreover, it’s important to maintain a light diet, avoiding spicy, irritating, and dry-hot foods as much as possible while also keeping bowel movements smooth. Frequent constipation or diarrhea should be avoided as they can cause wound pain or lead to inflammation and infection of the anal glands, potentially causing recurrence of the perianal abscess or the formation of anal fistulas later. However, the current situation indicates a relatively good post-operative recovery.

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Written by Chen Tian Jing
Colorectal Surgery
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Initial symptoms of perianal abscess

The primary cause of perianal abscesses is recurrent infections at the anal crypts, also known as repeated episodes of cryptitis. Generally, when cryptitis recurs and forms a local infection foci, early symptoms of a perianal abscess include pain in the anus and anal canal, accompanied by pus discharge from the anal canal. When the condition progresses to a certain extent, there will be hard pus pockets or pus formation. Once the infection within the pus pocket completely turns into pus, the patient will experience intense pain, manifesting as throbbing pain. Therefore, to alleviate the pain, it is necessary to promptly incise and drain the pus and further remove the local infection foci completely.

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Written by Chen Tian Jing
Colorectal Surgery
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Can I eat eggs with a perianal abscess?

Patients with perianal abscess can eat eggs, but during the acute onset period of a perianal abscess, besides sticking to a light diet, it is more important to seek surgical treatment as soon as possible. A perianal abscess is an acute infectious disease near the anal sinuses. Typically, it presents with severe local pain in the anus. Once pus forms, it is encapsulated in the abscess cavity and needs to be surgically drained as soon as possible to remove the infection thoroughly. This helps to prevent further enlargement of the abscess cavity and worsening of the condition. Furthermore, in the early postoperative period, patients can consume liquid foods and eat eggs in moderation or other easily digestible foods. However, they should avoid spicy and irritating foods such as chili peppers and seafood.

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Written by Chen Tian Jing
Colorectal Surgery
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Can an anal abscess be left untreated without surgery?

Surgical treatment is required during the acute phase of a perianal abscess. If surgery is not performed, it could lead to an expansion of the abscess cavity or worsening of the infection. Severe cases may lead to a local cellulitis around the anus, forming an inflammation of the cellular tissue. The surgical approach for a perianal abscess primarily involves incision and drainage, complemented by a one-time radical cure. The surgical principle mainly involves excising the infected local lesions altogether, thoroughly disinfecting and dressing the area, accelerating the shedding of the local infection, and ensuring normal growth of granulation tissue. Postoperative dressing changes are also crucial for the recovery from a perianal abscess.

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Written by Chen Tian Jing
Colorectal Surgery
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What will happen if a perianal abscess is not treated?

Perianal abscesses are localized abscess formations that occur due to repeated infections in the anal crypts. Typically, under perianal ultrasonography, clear pus chambers and related structures can be observed. If perianal abscesses are not treated promptly, there is a high likelihood of expansion of the local pus chambers and dispersion of the pus, leading to an increase in the size of local anal abscesses, which might involve the sacrococcygeal area or the intersphincteric space. The primary treatment for perianal abscesses is surgical, mainly through incision and drainage to evacuate the pus, followed by thorough debridement of the local wound. Additionally, if there are changes in the local sphincter, thread-lifting therapy may also be performed.

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Written by Chen Tian Jing
Colorectal Surgery
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Precautions for Perianal Abscess

The precautions for perianal abscess mainly include those during an acute episode and post-surgical measures. If it is clearly an acute onset of a perianal abscess, it is important to seek treatment promptly. Treatment methods, besides incision and drainage, further include debridement to achieve a complete cure through surgery. Generally, simple incision and drainage only alleviate temporary pain symptoms. If not followed by definitive surgery, there is a high likelihood of developing anal fistulas, necessitating a second surgery. Post-surgical precautions for a perianal abscess primarily involve maintaining cleanliness of the local wound, changing dressings, and ensuring that the drainage from the wound remains unobstructed to prevent false healing.