Considering the progress that has been achieved in the field of assisted reproductive methods, sperm cryopreservation is a reasonable choice, even if its concentration or motility is low.
With the application of modern in vitro fertilization techniques, it is possible to create an embryo by the injection of one live spermatozoon in an oocyte.
In case semen quality is better, it may be used for the application of simpler, less invasive methods to achieve a pregnancy, e.g. intrauterine insemination.
