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To the Editor:
—The general belief of the layman that any protrusion in the umbilical region of a baby is a hernia, we know, of course, to be wrong. A real hernia is rare, and demands, generally, surgical intervention. It is probably well for the baby that parents do take notice of unnatural protrusions; by replacing and retaining, a real hernia may be prevented. My purpose, however, is to speak against the use of wedge-shaped buttons made in any of the numerous forms now common on the market. One needs to think only for a moment to realize that their use defeats the end for which they are intended. It is a simple fact in physics that if it is desired to keep an opening open, a wedge, for instance, inserted and retained will accomplish that end. Why is this reasoning not applicable to the use of a wedge-shaped button
Steele HM. A NOTE ON THE "NAVEL BUTTON". JAMA. 1923;81(23):1975-1976. doi:10.1001/jama.1923.02650230059033