How can i do colostomy
As a colostomy has to be done when one is under general anesthesia, you cannot perform one on yourself. If you are not a doctor, you cannot perform one on another person either. There is more on this at http://www.umm.edu/ency/article/002942.htm.
Lord I hope you mean what to expect from a colostomy!?!
I hope you all mean colonoscopy.