A surgical operation to divide a structure of the rectum or anus.
An opening of an imperforate anus.
Incision into the rectum or anus to relieve ‘stricture (narrowing) of these canals or to open an imperforate (closed) anus.
Surgical cut made into the rectum or anus, often for addressing a narrowing or for a birth defect where the anus is closed off. This is also termed rectotomy.