Brief Answer: Hi and welcome to HCM Detailed Answer: The risk of bowel perforation with 2-3cm of fishbone which was swalowed 3 weeks ago,is negligible. This is not something that should worry. people swallow fish bones and other even bigger bones and sotmime they dont even notice it.an din most cases nothing happens. ocassionaly there is throat irritation and pain or heartburn in first few hours after intake,but bowel perofration is extremely rare scenario and it happens usually within first week. later that this,perforations are rarity. Fish bone usually become incorpotated in feces. also it become more or less smaller and dissolved by digestional enzymes. even if it stuck somewhere it will just lay on bowel mucosa and it is not likely that it will perpendiculary perforate bowel since our organism uses mechanisms to avoid this and every bowel irritation causes hypeperistalis and water secretion which pushes foreign body distally. So all in all you should not be concerned.Of course, if you fell sudden sharp pain-go to ER,but dont be hypohodnriac and alert every abdominal discomfort. symptoms of bowel peroration are very obvious. WIsh you good health. Feel free to ask. Regards

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Brief Answer: hi Detailed Answer: well it is usually seen associated with some chronic or local bowel diseases such as diabetes, inflammatory bowel diseases, coeliac, chronic opstipation. But even in these condition,risk of perforation is still negligible and it is more like lottery; there must coincidence that fish bone is stuck peprendiculary to bowel wall and it must be free of feces and then bowel perostalsis must occur exactly on place where fish bone is stuck-even even perforation occur it is usually so small that defect in bowel wall is healed with no symptoms for patient. our digestive system was simply created to be able to handle with foreign body swallowing especially with natural food.

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