A questionnaire was sent to all 475 members of the Norwegian Gynaecological Society. It was based on a similar study previously performed in Denmark and Sweden. 85% of the members returned the questionnaire. 382 (80%) had answered the questions; 153 (40%) women, 228 (60%) men, and one case where the sex was not stated. The mean age was 48 years (SD 10). The male gynaecologists had a more liberal attitude towards hormone replacement therapy than their female counterparts, 43% of them recommending oestrogen for all women, compared to 31% of the female gynaecologists. The younger doctors were more restrictive in their recommendations but attitudes became more liberal the older the doctors were. Among gynaecologists over 55 years, 49% of males and 50% of females recommended oestrogen for all women. The final decision as to whether or not to take hormone replacement therapy was most often made by the patient herself (61%). The majority of both female (86%) and male (75%) gynaecologists considered risk factors for heart disease to be an indication for oestrogen. In perimenopausal women, 356 (93%) preferred oral cyclical oestrogen combined with progestagen, whereas in postmenopausal women 333 (87%) preferred to take oral oestrogen combined with progestagen continuously.