Cancer treatments, particularly chemotherapy and radiotherapy, can adversely affect reproductive functions in women. There is a risk of fertility loss due to the toxic effects of these treatments on reproductive cells and ovaries. However, undergoing cancer treatment does not always eliminate the possibility of parenthood. Before treatment, women's eggs can be collected, frozen, and stored (oocyte cryopreservation). Similarly, it is possible for men to have their sperm cells frozen and stored (sperm cryopreservation). Especially in individuals diagnosed with cancer at a young age, the storage of reproductive cells before starting chemotherapy and/or radiotherapy is a primary and important measure to preserve the chance of future parenthood.