Sperm can be cryopreserved (frozen) from ejaculate or from surgically retrieved sources for future use in ICSI cycles.

Sperm may be cryopreserved for a number of reasons. If the quality of a semen sample is diminished, sperm may be frozen and banked to ensure adequate sperm are available on the day of treatment. Sperm may also be frozen if a patient has physical or psychological problems with producing a semen sample. Having frozen sperm in storage reduces the pressure to provide a sample on the day of treatment.