Once the cancer has been cured, the male can be fertile. If this is not the case, he could resort to using the sperm that he froze before his treatment. In these cases, since the semen is very valuable because it is scarce (only one or two frozen samples), ICSI is used directly, as a single sperm can be used to achieve gestation. Thus, if more children were desired, there would still be a frozen sample.
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