This paper describes the ways in which beliefs about cervical cancer became
contested within the medical profession in New Zealand from the late 1960s
to the late 1980s. Medical dissenters who contested orthodox beliefs about
cervical cancer during this period challenged the medical profession in a
number of ways. In particular, professional unity and authority were called
into question and threatened to turn professional uncertainties into publi
c anxieties. Professional strategies were employed to cope with knowledge c
laims that threatened existing medical beliefs. The work of Ludwik Fleck fo
rms the basis of a discussion of the ways in which medical knowledge is loc
ated and negotiated within a social context. This case study shows that clo
sure of disputes over knowledge claims about cervical cancer occurred large
ly as a result of an inquiry into medical practice presided over by the lai
ty and through an appeal to the moral as well as the scientific-technical.