This condition almost always requires surgery. Multiple procedures are sometimes necessary to correct the problem. A temporary colostomy can also allow your baby time to grow before surgery.
For a colostomy, your baby’s surgeon creates two small openings, or stoma, in the abdomen. They attach the lower part of the intestines to one opening and the upper part of the intestines to the other. A pouch attached to the outside of the body catches waste products.
The type of corrective surgery needed will depend on the specifics of the defect, such as how far your baby’s rectum descends, how it affects the nearby muscles, and whether fistulas are involved.
In a perineal anoplasty, your baby’s surgeon closes any fistulas so that the rectum no longer attaches to the urethra or vagina. They then create an anus with normal positioning.
A pull-through operation is when your baby’s surgeon pulls the rectum down and connects it to the new anus.
To prevent the anus from narrowing, it may be necessary to stretch the anus periodically. This is called anal dilation. You may need to repeat this periodically for a few months. Your doctor can teach you how to perform this at home.