Worldwide early detection of cervical cancer.

Data available to the World Health Organization on frequency of cancers of the cervix in developing countries are incomplete and fragmentary. There are many indications that cancers of the cervix represent problems of a public health dimension in these countries. With a few exceptions, screening efforts are low-volume institution-based cytology services reaching limited segments of the female population. On the other hand, the recognized risk factors for cancer of the cervix are widely prevalent in developing countries. Cultural and educational constraints often bar women from seeking medical attention. Diagnostic and treatment facilities, particularly radiotherapy, and all levels of trained staff have been insufficient to permit screening programs for cancers of the cervix. Development of future programs must ensure their integration into existing health infrastructures.