The invention discloses a method for regenerating gonads or a medicinal composition thereof. The gonads are reproductive by contacting an gonad with reproductive activity or a cell secretion of the gonads. Production and regeneration capacity.本發明係揭露一種使生殖腺恢復活性之方法或其醫藥組合物,其係藉由一老化生殖腺接觸具有生殖活性之生殖腺或其細胞分泌物,使該老化生殖腺受到刺激,而能夠重新恢復生殖細胞之生產及再生能力。