China (noted for skewed male-to-female ratio)

China's notably skewed male-to-female ratio results primarily from historical preferences for male children, reinforced by the one-child policy (1979–2015). This led to selective sex-selective abortions and uneven gender ratios at birth, with more males than females. Over time, this imbalance affects societal dynamics, including marriage prospects and aging populations. Economic development, cultural attitudes, and government policies all contribute to this demographic pattern, making China’s gender imbalance both a social and economic concern with long-term implications for its society.