In this prospective study, the aim was to determine the frequency and effectiveness of the coitus interruptus method, to compare the demographic characteristics of women using modern contraception methods and those using the coitus interruptus method and to demonstrate how effective contraceptive counselling is in choosing a contraception method. The researchers collected data from 1000 sexually active women in their reproductive period at the gynaecological clinic of a university hospital in Turkey. The researchers used an introductory information contraceptive counselling form, which they prepared for the data collection tool. The rate of the coitus interruptus method use among the interviewed women was 42.8%. There was a statistically significant difference between the coitus interruptus group and the group using modern contraceptive methods regarding mean age, educational status, smoking, awareness of last menstrual period, number of pads used during the menstrual period, and information sources. Following effective contraception counselling, the rate of switching to a modern and proven contraceptive method was found to be 73.8%.Impact statement What is already known on this subject?Although the traditional method of coitus interruptus has been used for many years, its incidence is not clearly known. What we know about the subject is based on ancient research. All the studies on the subject are very old and need to be updated. What do the results of this study add?With the help of the data obtained from this study, it is understood that withdrawal method is still widely used today, it is still not known that it is not a modern contraceptive method and the rate of transition to modern methods with effective contraception counselling is very high. What are the implications of these findings for clinical practice and/or further research?In the outpatient clinic conditions, even a very short period of time for contraception counselling will be very beneficial for women and will contribute to family planning and prevent unwanted pregnancies.