Objective: By using blogs written by young women diagnosed with breast cancer the breast cancer trajectory was described and interpreted

Methods: Twenty-six blogs, from Sweden and Brazil, written by women aged between 20 to 39 and diagnosed with breast cancer, were analysed using qualitative thematic analysis.

Results: A main theme was identified: From a healthy woman to a woman with breast cancer. This main theme was generated via four turning points: the message-getting the diagnosis, pre-treatment, treatment, and post-treatment. These turning points illustrate affecting moments over time. These young women went through a struggle, which gave them new perspectives due to the "before and after" experiences of becoming a cancer patient

Conclusion: The women underwent a breast cancer trajectory from a healthy woman to a woman with breast cancer and did so via four turning points associated with facing a new and unexpected reality. Existential issues are raised. Young women with breast cancer need to be supported in this transition so they can master the changed situation and replace feelings of distress with a sense of well-being.