Buzzer ulcers.

Alarm equipment for the treatment of nocturnal enuresis is generally advocated in suitable cases by paediatricians and psychiatrists alike. No unwanted side-effects have yet been reported, even though "among the failures are a group of children who are able to sleep obliviously through the ringing of the alarm bell" (Gairdner, 1965). Recently, however, we have seen cutaneous ulceration occur in two children as a result of their not being awakened by the buzzer alarm system.