Almost all breast cancer treatments have potentially harmful effects on women, and chemotherapy can lead to premature ovarian failure or decreased ovarian reserve function. Most premenopausal women regain ovarian function and experience menstruation within one year after chemotherapy, but menstrual irregularities are common due to intermittent cessation of ovulation, and even when menstruation returns, low ovarian reserve function, infertility, and premature ovarian failure persist. Surgery and chemotherapy have a negative impact on sexual function in breast cancer patients, and patients receiving chemotherapy are at higher risk of sexual dysfunction. Attitudes prior to breast cancer diagnosis, loss of breast sensation, ability to achieve orgasm, sexual desire, loss of femininity and loss of ability to maintain a stable partnership, psychological factors, and the effect of different surgical procedures on breast and body appearance have a complex impact on sexual function. With the improvement of treatment level, the survival time of patients is significantly longer, and improving the quality of sexual life of young breast cancer patients should attract the attention of health care providers and patients.