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Anal fissure — RACP Paediatrics MCQ

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EasyGIAnal fissureRACP Paediatrics

A 4-week-old breastfed infant presents with streaks of blood in the stool. The infant is well, feeding normally, and gaining weight. Examination reveals a perianal skin tag and a small tear at the 6 o'clock position. What is the most likely cause?

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Correct answer: C — Anal fissure

Anal fissure is the most common cause of rectal bleeding in infants. A visible fissure with blood-streaked stool in an otherwise well infant confirms the diagnosis. Conservative management with stool softeners and barrier cream is usually sufficient.

Reference: RCH Melbourne – 2023 – GI Bleeding CPG; RACP Paediatric Curriculum – Gastroenterology