Many young women who survive cancer don’t understand how tumor treatments affect their reproductive health even though the therapy can trigger infertility, a survey suggests. Researchers focused on 346 women who were around 30 years old on average and had typically finished cancer treatment about five years earlier. At the time participants completed the survey, 106 women said they had been told they would not be able to become pregnant or carry a baby to term as a result of their cancer treatment, and 21 women said they had taken steps to preserve fertility before treatment such as egg or embryo freezing.