The humanitarian impact of nuclear weapons refers to the catastrophic immediate and long-term consequences of nuclear explosions on human life, public health, natural environment, socioeconomic systems, and future generations. Unlike conventional arms, nuclear weapons inflict indiscriminate harm, causing mass casualties, long-lasting radiation effects, and irreversible damage to ecosystems. The subject has become important in international disarmament discussions, leading to global campaigns and treaties that emphasize the humanitarian imperative to prohibit and eliminate nuclear weapons.