A program for improving housestaff education in cancer pain control was piloted on an inpatient oncology unit during academic year 1992-93. Housestaff (four or five first-year residents and two more senior residents per month) received a three-day lecture series each month. A total of 32 housestaff participated. A questionnaire (Test A) about cancer pain was administered before the series. The subjects scored 58% correct (range 49-69). When Test A was repeated at the end of each rotation, the subjects scored 83% correct (range 82-86, p < 0.0001). A quiz on analgesic dosing (Test B) was also administered. The subjects scored 38% (range 20-56) before the lectures, 81% (range 72-93) immediately after the lectures, and 57% (range 44-67) at the end of the rotation. The authors conclude that this pilot project improves knowledge about cancer pain, but sustained reinforcement is needed if analgesic dosing skills are to be maintained.