Research on the Parental Right of Consent to a medical Treatment of their minor Child.

未成年人的父母（或父母一方）为了未成年人的最大利益而享有亲权。日本法律中的亲权包括作为未成年人代理人的财产权。未成年人的父母应当为未成年人的最大利益行使财产权。他们无权减少未成年子女的财产。即使他们订立了将未成年人的财产赠与他人的合同，这种合同也不应具有法律的效力。因为他们没有这个权利。未成年人的父母有权利为了未成年人的最大利益而拥有监护权。为了未成年子女的最大利益，他们应该获得监护权。此外，他们应该为了孩子的最大利益而行使医疗监护权。父母应该作为未成年孩子的代理人，为了未成年人的最大利益而签订医疗合同。当最大利益需要医疗合同时，未成年人的父母必须订立医疗合同。当需要对未成年人进行医疗治疗征得同意时，父母必须同意以监护方式进行治疗。他们不能拒绝医疗合同和医疗。

Parents (or a parent) of a minor have parental rights for the best interest of the minor child.Parental rights in Japanese Law include property rights as an agency for the minor. Parents of a minor ought to exercise their property rights for the best interest of the minor. They don't have a right to reduce the property of their minor child. Even if they make a contract to give their minor's property to another, such a contract should have no legal effect. Because they don't have that right.Parents of a minor have a right in relation to custody for the best interest of the minor. They ought to take custody for the best interest of their minor child. Also,they ought to exercise this right in medical custody for the best interest of the child.Parents ought to make a medical contract as an agency of their minor child for the best interest of the minor. When the best interest needs the medical contract, parents of the minor must to make this contract. When it needs a consent to the medical treatment for a minor, parents must to consent for the treatment as taking custody. They cannot refuse the medical contract and the medical treatment.