[Informed Consent of the Contraception for Male Cancer Patients under Treatment of Anti‒Cancer Medicine-Current and Future Status].

Fertility preservation for male cancer patients is gradually being recognized and the network for clinical practice has progressed, accompanied with the increasing number of local governments which give a subsidy for their sperm cryopreservation. Sperm cryopreservation is recommended, not only for the risk of azoospermia but also for the possibility of increased risk of malformation due to sperm DNA damage. On the other hand, there is no sufficient evidence for the necessity of contraception, its proper duration, and effects depending on the action sites of the corresponding cancer medicine, making it difficult for clinicians to achieve consensus. Here, we discuss the current and future informational provision of contraception and fertility preservation for male cancer patients.