Slums: Due to the high cost of living in urban areas and the low earnings of most migrants, they have to live in slums.
Traffic jams: With high population density and unplanned urbanisation, most transportation systems are under heavy stress leading to long traffic jams.
Pollution: It is a major problem having adverse effects on health. Lack of facilities, unplanned development and breaking of laws leads to huge pollution in cities.
Crime: With a very high cost of living and low-paying jobs, many migrants turn towards illegal activities and indulge in crime.
Social disharmony: People from different cultures and backgrounds may also have tensions among them in urban areas.