Which condition is a contraindication to colostomy irrigation?

• A. Not for patients with constant liquid or semi-liquid output
• B. Not for patients with good rectal tone
• C. Not for patients with mild anal irritation
• D. Not for patients with constipation

Answer: (A)

Colostomy irrigation works best when there is some formed stool in the distal bowel and the rectum can hold and pass it in a controlled way. If the output from the stoma is consistently liquid or semi-liquid, there isn’t a formed stool to regulate with the irrigation, so attempting irrigation won’t create a predictable, formed evacuation. Instead, it can lead to ongoing watery effluent, skin irritation, and poor control, which is why constant liquid output is a contraindication.

Other situations described aren’t contraindications. Good rectal tone suggests the distal segment can retain the irrigation fluid and cooperate with forming a controlled stool, which is favorable for irrigation. Mild anal irritation isn’t a universal barrier to performing irrigation; it may require gentle technique and monitoring but doesn’t automatically rule it out. Constipation can actually be an indication for irrigation, as the goal of irrigation is to regularize stool passage by helping form and evacuate a controlled amount, not to avoid stool formation.