Jańczyk Magdalena, Samek Ilona, Rolińska Agnieszka. Women’s knowledge about pregnancy complicated by breast cancer and the attitude towards the implementation of anti-cancer therapy. Journal of Education, Health and Sport. 2019;9(9):170-181. eISSN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.3387095 http://ojs.ukw.edu.pl/index.php/johs/article/view/7386 The journal has had 5 points in Ministry of Science and Higher Education parametric evaluation. § 8. 2) and § 12. 1. 2) 22.02.2019. © The Authors 2019; This article is published with open access at Licensee Open Journal Systems of Kazimierz Wielki University in Bydgoszcz, Poland Open Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author (s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non commercial license Share alike. (http://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited. The authors declare that there is no conflict of interests regarding the publication of this paper. Received: 25.08.2019. Revised: 30.08.2019. Accepted: 05.09.2019. Women’s knowledge about pregnancy complicated by breast cancer and the attitude towards the implementation of anti-cancer therapy Magdalena Jańczyk (1); Ilona Samek (1); Agnieszka Rolińska (2) 1) Student Research Group of Applied Psychology, Medical University of Lublin 2) Department of Applied Psychology, Medical University of Lublin *Address for correspodence: Smolniki 7/12, 18-520 Stawiski, telephone number: 662237472, e-mail address: magdajanczyk7@gmail.com ORCID ID: Magdalena Jańczyk: https://orcid.org/0000-0002-4948-9463 Ilona Samek: https://orcid.org/0000-0002-5538-5396 Agnieszka Rolińska: https://orcid.org/0000-0001-5595-3077 Abstract Introduction and purpose: Breast cancer is the most commonly diagnosed cancer during pregnancy. Women can treat it, but pregnancy has a significant impact on the types and duration of using treatment. Purpose is to present the opinions of women about pregnancy complicated by breast cancer. Material and methods: 206 women participated in the study. We used a survey on the Internet. The average age of the respondents was 31.2. To establish whether an observed frequency distribution differs from a theoretical distribution the chi2 test of goodness-of-fit was used, to estimate relation we use the chi2 test of independence. Results: There were statistically significant differences between the number of women who believe that breast cancer is benign vs. malignant. Most often indicated as a safe method of diagnosis in pregnant women were: biopsy, mammography with lead shield, ultrasound, there was also a relationship between the place of residence and the choice of biopsy and ultrasound. A significant difference was noted between the number of women declaring an attitude forward delay vs starting treatment in pregnancy. There was a significant relationship between the pregnancy experience and the declared decision on the time of beginning of the therapy. Conclusions: The results suggest that women are aware of the malignancy of breast cancer. Many of them incorrectly differentiate the effects of this cancer in pregnant women and not pregnant. Biopsy, mammography with lead shield, ultrasound are perceived as the safest methods of diagnosis. Significantly more respondents claim that they would postpone the therapy until the end of pregnancy. Women who have never been pregnant more often declare that they would decide to postpone treatment. Key words: breast cancer; pregnancy; attitude; knowledge.