When changing the medicine on the first day after the operation, it is necessary to observe whether there is ischemia at the colostomy, that is, whether there is blackness or darkness in the mucosa of the stoma. If there is ischemia at the stoma, but there is a small amount of reddish intestinal mucosa, symptomatic treatment is usually sufficient. The surface of the stoma can be covered with procaine gauze, and the intestinal mucosa will become more reddish after 5-7 days, and the stoma should be observed to see whether there is any infection, stoma separation, stoma retraction and stoma prolapse. If there is stoma separation and stoma infection, the gap around the stoma needs to be cleaned, rinsed repeatedly with saline, and then wiped with iodine povidone; the interior is filled with gauze if necessary, and then the area around the stoma is isolated with anti-leakage strips or anti-leakage cream. The skin around the stoma should be coated with fistula powder as well as anti-leakage gel to prevent dermatitis of the skin. It is then advisable to use a convex sump, a two-piece ostomy bag, which may be better because it is easier to change the medication, and you do not need to open up the sump, but only need to uncover the ostomy bag later. After the stoma has grown, stoma care is relatively simple, only need to use warm water to wipe clean around the stoma, and then apply stoma powder, and then reapply the stoma bag again.