Efficacy of cervical cancer screening.

The earlier optimistic predictions that invasive carcinoma of the uterine cervix could be totally eradicated by means of Pap screening have failed. Experiences from different countries give evidence, however, that a considerable reduction of incidence and mortality can be gained with this type of secondary prevention. Improved knowledge of the epidemiology of carcinoma of the uterine cervix and of its natural history could be anticipated to give a better basis for the planning of preventive measures. Maintenance of a high laboratory standard, a good technique for taking of smears, and improved communications between laboratories and the doctor or nurse taking the smear and the doctor or clinic performing the treatment and an adequate reaction to the report from the laboratory with adequate treatment of the precancerous stages is supposed to improve the effect of the screening programmes.