抚养权和户口孩子之间有一定的关系，但并不是直接的影响。抚养权是指父母对孩子的抚养、教育、照顾和监护等职责和权利，包括日常生活中的生活费和教育费用等。户口是指一个人在公安部门系统中的注册信息，记录着个人基本信息和家庭关系等。
在我国，《中华人民共和国婚姻法》规定，未成年子女由父母共同抚养。在父母离婚或者其他原因导致一方无法履行抚养职责时，抚养权可能会被判定给另一方，以保障孩子的正常成长和发展。而户口则通常会随着孩子的监护人而变化。若抚养权被判定给父亲，则孩子的户口通常会转到父亲户口所在地。
然而，由于理论上父母双方都有权利和义务对孩子进行抚养和监护，因此在司法和行政实践中，有时候抚养权的判定会因各种因素而产生争议，而这种争议往往需要通过诉讼、协商等多种方式得以解决。在这种情况下，孩子的户口也可能会因抚养权争议而受到影响，例如可能需要经过重新审批或者调整户口等操作。
总而言之，抚养权和户口孩子之间存在一定的关系，但具体情况需要根据各种因素而定，且抚养权决定不一定直接导致户口变化。Parents' custody rights， education and care responsibilities， including living expenses and education costs in daily life. On the other hand， the household registration refers to an individual's registration information in the public security department system， recording personal basic information and family relations.
In China， the Marriage Law of the People's Republic of China states that minors are jointly raised by their parents. When one party cannot fulfill the guardianship responsibilities due to divorce or other reasons， custody may be awarded to the other party to ensure the child's normal growth and development. The household registration usually changes with the child's guardian. If custody is awarded to the father， the child's household registration is usually transferred to the father's registered residence.
However， since both parents theoretically have the right and obligation to raise and care for their children， disputes over custody may arise due to various factors in judicial and administrative practices， and such disputes often need to be resolved through litigation， negotiation and other means. In this case， the child's household registration may also be affected by custody disputes， for example， it may need to be re-approved or adjusted.
In conclusion， there is a certain relationship between custody and household registration of children， but specific situations need to be determined according to various factors， and the decision of custody does not necessarily directly lead to changes in household registration.
