Early childhood marriage is a major reproductive health issue and remains one of the biggest challenges in Nigeria. This type of marriage has enormous adverse effects on education, health, and the overall development of adolescents and youths and it has a huge public health consequence. Early childhood marriage is a cross-cutting issue, for the sustainable development goals to be achieved, issues of adolescent reproductive health must be addressed by stakeholders working across different sectors, including governments, Civil Society organization, communities and development partners. Thus, this paper is a literature review of the prevalence and public health consequences of child marriage status in Nigeria. The paper sought to discuss the public health consequences of early child marriage in Nigeria recommendations and way forward to ameliorate the problem were also presented.