This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Rectum, Subject name: Surgery
[{'content': "Treatment of rectal prolapsed in childhood is: \nSelect and explain. \nA. Lahaut's operation, B. Incision of prolapsed mucosa, C. Thiersch wiring, D. Ripstein operation", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) Thiersch wiringRectal prolapse in childhood:* Most common in age 8-12 months* Usually follows an episode of severe diarrhea due to loss of perirectal pad of fat* It may also follow pin worm infestation and malabsorption.* Conservative management:# Control diarrhea, worm infestation and correct malnutrition# Surgery is reserved if there is persistent disease after manual reduction* Options in childhood:# 5% phenol in olive oil injected Submucosally# Thiersch encirclage operation.# Lockhart Mummery rectopexy', 'role': 'assistant'}]