This book provides a comprehensive overview on issues surrounding fertility in patients who have been diagnosed with breast cancer or belong to a high-risk population. The impact of breast cancer treatment on fertility is clearly explained and all the available options for fertility preservation are discussed, including the use of assisted reproduction technologies. Guidance is offered on family planning and on management options when breast cancer arises during pregnancy and when pregnancy occurs after breast cancer. Answers are provided to a wide range of key questions, including: What is the impact of pregnancy after breast cancer on prognosis? What advice should be given on the timing of pregnancy in relation to chemotherapy and endocrine treatment? What is the effect of reducing the duration of endocrine treatment to allow an earlier attempt at pregnancy? Is breast feeding possible?  Medical treatments of breast cancer have a huge impact on fertility. While many procedures can be applied to preserve fertility, all must be put into action within the very short time available before starting treatment. Any delay in referral of a woman wishing to preserve her fertility to an ART center with experience in oncologic patients may preclude the possibility of a future pregnancy. In addition, an increasing number of high-risk patients are asking questions about their reproductive life, from choice of contraception to the risks of assisted reproduction techniques. Physicians will find this book an invaluable aid in providing flawless counseling to their patients and ensuring that they receive optimal management.