Rectal Misadventures

Rectal bleeding and anorectal pain are often benign, but the dangerous misses are colorectal cancer, rectal varices, deeper sepsis, and perforation. Hemorrhoids, perirectal abscesses, and rectal foreign bodies all reward a careful exam and a low threshold to rethink the label when the story does not fit.

Hemorrhoids and Rectal Bleeding

• Supportive care first: Most ED hemorrhoid complaints improve with topical therapy, sitz baths, fiber, and avoiding straining; the key is symptom control while watching for diagnoses masquerading as hemorrhoids.
• Prolapsing hemorrhoid referral: Prolapsing hemorrhoids usually need definitive surgical management, even when they reduce spontaneously, because they are unlikely to resolve for good on their own.
• Bleeding after age 35: Rectal bleeding attributed to hemorrhoids in patients 35 and older deserves colonoscopy referral, given the rise in colorectal cancer presenting in the late 30s and 40s.
• Recurrent visit rethink: Repeated ED visits for supposed hemorrhoids should trigger diagnostic skepticism; portal-hypertension rectal varices can look similar but are managed very differently. We get into the bedside distinctions in the episode.
• Thrombosed pain curve: A thrombosed external hemorrhoid is essentially a bruise in a bad spot; severe early pain favors clot evacuation, while improving pain can often be managed conservatively.

Perirectal Abscess Pearls

• Drain what you see: A directly visualized perirectal abscess can be incised and drained in the ED, provided the anatomy is clear and the sphincter is respected.
• Incision close to anus: Place the incision as close to the anus as possible without injuring the sphincter, because a shorter future fistula tract is easier to manage surgically.
• Loculation breakdown matters: Cotton-swab disruption of loculations plus thorough irrigation improves source control, and an ellipse or cruciate incision helps prevent premature skin closure.
• Mallecot over packing: If the cavity is large enough to make packing likely, a Mallecot drain can be easier for patients to tolerate and manage after discharge. We walk through where that tradeoff matters in the chapter.

Rectal Foreign Body Management

• Toxicity and perforation screen: The first decision is not extraction technique but whether the patient looks toxic or has signs of ischemic bowel or perforation, which changes the whole pathway.
• Direct visualization first: Stable patients without perforation signs may be approached with proctoscopy or endoscopy first, because seeing the object often clarifies both feasibility and risk.
• Foley airlock trick: Passing a Foley beyond the object can break the seal holding it in place, and balloon traction may assist removal when simple grasping fails.
• Observe after removal: Successful extraction does not end the evaluation when the object is improvised or traumatic-looking; short ED observation helps catch evolving perforation or ischemia.
• Repeated instrumentation harms: Multiple removal attempts can injure the rectum and contribute to incontinence or prolapse, a complication profile worth keeping in mind before escalating bedside maneuvers.

References:

1. Lawrence A, McLaren ER. External Hemorrhoid. [Updated 2023 Aug 8]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK500009/
2. Sigmon DF, Emmanuel B, Tuma F. Perianal Abscess. [Updated 2023 Jun 12]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK459167/
3. Sajjad H, Paish LM. Rectum Foreign Body Removal. [Updated 2023 Jul 17]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK557557/