Frontiers in MedicinePublished June 14, 2026DOI ↗Editorial oversight: Dr. Lars van Dijk, PhD · Surgical, Procedural & Diagnostic
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Key Takeaway
Consider using this physical exam algorithm to differentiate benign anal masses and guide surgical referral.
This narrative review presents a clinical decision algorithm for differentiating benign lesions that prolapse through the anus, such as complete rectal prolapse, mucosal rectal prolapse, internal hemorrhoids, thrombosed hemorrhoids, anal condylomas, hypertrophied anal papilla, and anal canal polyps. The algorithm relies on physical examination findings including fold pattern, texture, mobility, and anatomical location. The authors aim to optimize surgical decision-making and identify red flags for malignancy or surgical emergency.
Key findings include a structured approach to distinguish between these conditions based on physical exam characteristics. For example, complete rectal prolapse typically presents with concentric folds, while mucosal prolapse shows radial folds. Internal hemorrhoids are characterized by vascular cushions that prolapse with straining, and thrombosed hemorrhoids appear as painful, firm nodules. Anal condylomas are wart-like growths, hypertrophied anal papilla are firm and white, and anal canal polyps are pedunculated.
The review acknowledges its narrative format as a limitation, meaning the algorithm is proposed based on clinical experience rather than systematic evidence. No data on diagnostic accuracy, patient outcomes, or safety are provided.
For clinicians, this algorithm offers a practical framework for bedside diagnosis of common anorectal masses, potentially reducing unnecessary referrals or surgeries. However, it should be interpreted as expert guidance, not validated clinical evidence.
How this fits prior evidence
This narrative review extends prior coverage of hemorrhoid management by providing a clinical algorithm for differentiating hemorrhoids from other benign anal masses. While a prior systematic review cataloged medicinal plants for hemorrhoids, this review focuses on physical examination to guide surgical decisions, addressing a gap in diagnostic tools. The algorithm is based on expert opinion, contrasting with the evidence-based catalog of plant remedies.
A new review describes a clinical decision algorithm designed to help doctors identify different types of masses that protrude from the anus. This tool helps medical professionals distinguish between common issues like internal hemorrhoids or anal condylomas and more complex conditions like rectal prolapse.
The process relies on a physical examination focusing on specific details, such as the texture, mobility, and anatomical location of the tissue. By looking at these patterns, doctors can better determine if a patient has a benign growth or something requiring urgent medical attention. The goal is to improve how surgeons choose the right treatment for each person.
Because this information comes from a narrative review rather than a clinical trial, it serves as a guide for decision making rather than direct proof of specific outcomes. It helps identify red flags for potential emergencies or serious conditions. Patients should speak with their doctor to determine which specific condition they have and what treatment is right for them.
What this means for you:
A new physical exam guide helps doctors distinguish between various types of anal masses and rectal prolapse.
Common questions
What can this new tool help doctors identify?
The proposed algorithm helps doctors distinguish between several different conditions. These include complete rectal prolapse, mucosal rectal prolapse, internal hemorrhoids, thrombosed hemorrhoids, anal condylomas, hypertrophied anal papilla, and anal canal polyps.
How does the physical examination work?
The decision algorithm is based on a physical examination of the area. Doctors look at specific factors including the fold pattern, texture, mobility, and anatomical location of the tissue to make an accurate diagnosis.
Is this tool used to find emergencies?
Yes, one of the main goals of the algorithm is to help doctors identify red flags. This helps them spot potential surgical emergencies or signs of malignancy more quickly during a physical exam.
Masses prolapsing through the anus represent a frequent diagnostic challenge in coloproctological practice. Misidentification may delay the management of malignant disease or surgical emergencies. This narrative review integrates current evidence on seven benign entities that may prolapse through the anus—complete rectal prolapse, mucosal rectal prolapse, internal hemorrhoids, thrombosed hemorrhoids, anal condylomas, hypertrophied anal papilla, and anal canal polyps—and proposes a clinical decision algorithm based on findings from physical examination. Particular emphasis is placed on the identification of red flags that require exclusion of malignancy or surgical emergency. The evidence supporting the different therapeutic options is critically analyzed. The proposed algorithm prioritizes objective clinical characteristics—fold pattern, texture, mobility, and anatomical location—to guide differential diagnosis and the sequence of complementary studies, optimizing surgical decision-making.
