Abstract
Parastomal hernia is a common late complication after stoma creation and the incidence has been reported to be 10％～30％. A number of factors have been implicated in the development of hernia.
In this study,we investigated whether obesity affected the incidence of parastomal hernia,Four out of 25 patients（16％）with colostoma due to rectal cancer developed parastomal hernias. Body mass index（BMI）was significantly higher（25.64）in patients with parastomal hernia compared to patients without parastomal hernia（21.45).
Based on these findings,we suggest that in preoperative planning for creating stoma for obese patients,the stoma site should be marked further up the anterior abdominal wall than for non-obese patients.
