Introduction The incidence of breast cancer is increasing yet it is a preventable disease. Breast cancer differs from other cancers because it is easier to detect it at the early stage and treat it. Breast cancer is prevalent in many parts of the world because many people lack knowledge about the risk factors, screening processes, and management. Although nurses encourage clients to practice breast self-examination, they usually forget to inquire if the clients know the process or have some difficulties in performing the procedure. Therefore, many clients do not perform breast self-examination yet it is a simple and inexpensive procedure because they do not know what to do. According to recent research, breast cancer incidence has increased in Korea, affecting women who are less than thirty-five years. This paper will review research done about breast cancer. It was a cross-sectional study and the researchers were Kyung Rim Shin ED D, RN, FAAN, FAAN, Hyo Jung Park Ph.D., RN, and Mijung Kim Ph.D. candidate, RN. The purpose of the study was to determine if young women performed breast self-examination and if they had any knowledge regarding breast cancer. The research involved two thousand one hundred and eighty-six female students in the university. The researchers found out that most of the young female university students lacked knowledge about breast cancer and they did not perform breast self-examination. They concluded that the university curriculum should include training about breast cancer. The methodology used for the study Shin, Park & Mijung (2012) conducted a cross-sectional descriptive study. The study instruments were knowledge scales for assessing the level of knowledge about breast cancer and questionnaires for evaluating the practice of breast self-examination. The study population was Korean women in the universities. The inclusion criterion was any consenting female student who attended a five-year college or two-year community university and lived within the specified geographical areas. The exclusion criterion was any non-consenting student. The sampling method was probability quota sampling. Shin, Park & Mijung (2012) divided Korea into five areas and estimated the number of participants to be included in the study via analysis of the number of students who came from a particular region. They came up with a target population of two thousand two hundred and forty-two students and collected data by interviewing them using the knowledge scales and questionnaires. The researcher analyzed the collected data using a computer program known as SPSS and presented it in tables. The design problem that Shin, Park & Mijung (2012) encountered was that some students who qualified to be included in the study refused to participate. As a result, the selected sample dropped by fifty-six students. The ethical consideration that Shin, Park & Mijung (2012) considered was that they got a written authority from Ewha Women University in Korea. They explained the relevance and usefulness of the research to the participants. The participants were told the kind of information to be collected and how they were to participate in the study. Finally, the researchers obtained informed consent from the