Ostomy irrigation procedures are significantly different for urostomy, colostomy, and ileostomy. Colostomies involve daily irrigation of the colon, whereas urostomies involve catheters, generally every 4-6 hours, even throughout the night. Ileostomies should never be irrigated unless the doctor deems it absolutely necessary such as when there is a blockage and the patient doesn't respond to other treatments. In this case, abdomen X-rays would be required before and after the ostomy irrigation is performed.