Marriage is an important social institution that influences the health, well-being, and development of individuals and society. The suitable age of marriage refers to the age at which a person is physically, mentally, emotionally, socially, and economically prepared to take up marital responsibilities. In many Asian countries, governments and social organizations encourage marriage at a mature age to promote healthy families, reduce social problems, and support sustainable development. Delaying marriage until adulthood allows individuals to complete their education, develop skills, become financially independent, and make informed decisions about family life. The suitable age of marriage is closely linked with physical and reproductive health. Early marriage, especially among girls, increases the risk of maternal mortality, malnutrition, pregnancy-related complications, and infant mortality. Young mothers often face health challenges because their bodies are not fully developed for childbirth. Delaying marriage helps improve maternal and child health, supports family planning, and contributes to better population management. It also reduces the chances of child marriage, which is considered a violation of human rights in many