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It is very possible that scar tissue has formed, which is very common following surgery and usually does not cause any problems. Regarding sensory issues, sensation usually returns within 1 year of the incisional site, but in some cases, it may not ever. If this sensation should ever get 'worse', painful, or recurrent constipation should occur, you should follow-up with your physician because scar tissue can grow 'get carried away - in terms' and wrap around other organs, but do know that this is rare.
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