Figure 3. Fertility preservation techniques for cancer patients
*Experimental approach
**Not effective in fertility preservation Cryopreservation of embryos, oocytes, and spermatozoa are considered effective techniques for preserving fertility. Freezing ovarian and testicular tissue is experimental and should only be indicated in pre-pubescent children evaluated in reference services of research. The transposition of ovarian tissue is an option for people set to undergo pelvic radiotherapy. The use of the gonadotropin-releasing hormone agonists (GnRHa) is not effective for the preservation of fertility.