Making a difference--women, medicine, and the twenty-first century.

Women can and should make a difference in how medical care is given in the future. The increased number of women physicians presents an opportunity to make a significant impact on the quality of medical care. Data is provided on the number of women applicants to medical school, matriculants and graduates, specialty choices, the status of women in academic medicine, and the income of women physicians. Four aspects of the environment that portend important changes for medicine in the future are identified: scientific developments, alternative delivery systems and the corporate practice of medicine, the aging population and other demographic changes, and the expanding number of physicians. Some of these changes suggest opportunities for making a difference in the traditional specialties of medicine, in providing care to underserved populations, in research careers, in the shortage areas of preventive medicine and public health, occupational medicine, child psychiatry, and physical medicine and rehabilitation, and in new areas such as community pediatrics, behavioral pediatrics, and adolescent medicine. There are many choices and many decisions to be made, and each individual can choose to make a difference.