It has been known for years that cancer treatments damage the male and female germ line. Until recently, the priority in the face of cancer was to be cured. Due to the great advances achieved in the treatment of cancer and the high survival rates that are obtained today in some types of tumours, the importance of controlling the side effects of these treatments is gaining ground. One of them is infertility and, although men have been able to store sperm from the ejaculate for years, today women can also freeze eggs and ovarian tissue.
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