Public health insurance is a government-funded program that provides medical coverage to eligible individuals, ensuring access to necessary healthcare services. It aims to reduce the financial burden of medical expenses, making healthcare more affordable for everyone, especially those with low incomes or specific needs. In many countries, public health insurance is designed to cover a range of services, including hospital visits, preventive care, and prescription medications. Programs like Medicaid in the United States and NHS in the United Kingdom exemplify how public health insurance can help improve overall community health and well-being.