Surgery for congenital megacolon is done according to the severity of the lesion. If it is short segment type or ultra-short segment type, surgery can be done without non-surgical dilatation treatment can be good. The common type can be operated at 6 months, and if it is a long segment type, or a total colon type, the neonatal period is resolved. There are two types of surgery, there are two domestic views, some advocate fistula, this is also a way, because the child surgery to cut intestine blow, the child’s recovery is not conducive to fistula, some immature. The technical conditions are good, such as many children’s hospitals, do together, because fistula a lot of trouble, later to open the abdomen, the scar is also large, and fistula 3-6 months, parents also have a large burden, fistula has a lot of complications, enterostomy that intestinal tube prolapse, retraction, fistula mouth dermatitis. The newborn period is a lot, more than 300 cases, generally no problem, at least 20 days can do, can also be successfully completed, the technology is not a problem, because the lumpectomy on the child is also small shock, can tolerate surgery, anesthesia is now also good. Unlike other surgeries, there is some preoperative preparation for the surgery. If the child is older, it is usually necessary to do intestinal preparation, because there is more stool in the intestinal surgery, and the bowel is routinely cleansed before the surgery. If the child is more than 6 months old or more than 1 year old, it is generally necessary to wash for 2 weeks, if 6 months to 1 year old, so wash for 10 days, to clean the intestinal tract inside, the purpose of intestinal washing is a clean stool. The second giant colon intestinal tube will be retracted, but also very conducive to surgery, some giant colon large, the anus all blocked full to go, so difficult to operate. The length of the intestine will be reduced after washing, which facilitates the operation. In addition, many E. coli, without intestinal preparation, cause some complications such as peritonitis, small intestine colitis, wound infection, and colonic retraction, which can be reduced by adequate intestinal preparation. In addition to bowel cleansing, there are 3 days of routine intestinal medication to kill E. coli in the intestinal tract. In addition to E. coli, there are many anaerobic bacteria that can be killed to help reduce postoperative complications. Of course, postoperative liver function and electrocardiogram should be checked to see if there is heart disease, and some have hydrocephalus, which are routinely prepared before surgery. If the anemia is obvious, the anemia should be corrected, and some have hypoproteinemia, low protein, and long-term malnutrition, which should be corrected. Combined with severe heart disease or other medical conditions, it can be delayed and can be conservative and operated on when older.