<unk>  (commonly called sperm banking or sperm freezing) is a procedure to preserve sperm cells.<unk>  can be used successfully indefinitely after<unk> . For human sperm, the longest reported successful storage is 24 years. It can be used for sperm donation where the recipient wants the treatment in a different time or place, or as a means of preserving fertility for men undergoing vasectomy or treatments that may compromise their fertility, such as chemotherapy, radiation therapy or surgery. It is also often used by transgender women prior to medically transitioning in ways that affect fertility, such as hormone replacement therapy and orchiectomies.
Semen cryopreservation
Fertility preservation
Assisted reproductive technology
Ovarian tissue cryopreservation
Sperm donation
Sex reassignment therapy
Transgender hormone therapy
Embryo cryopreservation