Mass migration, major problems

BEIJING - China's migrant population now numbers 221 million, or 16.5 percent of all citizens, and as the numbers grow so do the problems these people face.

Most migrants do not enjoy the same rights as local people and therefore face difficulties integrating into urban life, according to a government report issued on Sunday.

The 2011 Report on China's Migrant Population Development was issued by the National Population and Family Planning Commission and will serve as a guide for the central government as it formulates plans for urbanization and population management.