In the United States, liquid-based cytology (LBC) has rapidly become a common method used in cervical cancer screening (1–4). Its popularity with both medical professionals and insurance companies may be related to the ease of microscopic interpretation and the potential for performing additional medical tests on the same sample (2,5,6). This popularity may also be attributable to direct marketing to physicians, to patients, and to laboratories (1). However, limited information is available on the extent of LBC use and how use varies by patient and practice characteristics; previous studies (1,3,4) were based on selected specialties or were conducted in limited geographic areas. This report examines the type of cytology test ordered or provided at primary care visits to office-based physicians made by females aged 15–64 in the United States in 2006–2007.