ABSTRACT

Malformations of the anorectum include a series of congenital lesions, ranging from a slight malposition of the anus to complex anomalies of the hindgut and urogenital organs. The reported incidence of anorectal anomalies ranges between one in 5000 and one in 3300 live births. In Western communities, there is a male preponderance: 55-70 per cent of the patients in larger series have been males. The more severe malformations tend to be more common in male patients.