As long as male infertility is caused by a factor that can be cured, the answer is yes. However, it should be clear that infertility is not what can be cured, but the cause behind it. Blockages, toxic habits, treatments with reversible effects, etc. can be cured and the man recover his fertility. On the other hand, if the cause is unknown or irreversible (e.g. chemotherapy, congenital diseases...), there exists no cure.
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