The normal rate is 103 to 107 per 100. 45 provinces recorded rising male-biased sex ratio at alarming rates.
Provinces with the highest rates of sex ratio at birth are Hung Yen, Hai Duong, Bac Ninh, Bac Giang, Nam Dinh, Hoa Binh, Hai Phong, Vinh Phuc, Quang Ninh and Quang Ngai. According to the UN's recommendations, if this situation continues, by 2050, Vietnam will have 2.3 - 4.3 million more men than women.
This can have social implications such as increased gender inequality, prostitution, human trafficking.
