Hi. Thanks for your query. Noted the history and understood your concerns. Not at all, there may not be any role of surgery for constipation if plain water enema is working for constipation unless proved otherwise by the following investigations: Get a Baium enema tests done. MRI of the lower spine to rule out any neurological cause. Clinical evaluation by a Gastroenterologist and Colonoscopy after proper preparation and manometry studies. Change the diet to full normal diet. Treatment of stress and anxiety as this may be IBS- C that is irritable bowel syndrome of constipation variety. All these lead to proper finding the cause and thus make the treatment possible.