Child labour refers to work that deprives children of their childhood and is harmful to their development. It can take many forms, including hazardous work, work that interferes with education, and exploitative work like forced labour. Common causes of child labour are poverty, lack of access to education, cultural acceptance of child work, demand for cheap labour, weak enforcement of child labour laws, and situations of conflict or displacement. The effects of child labour include health and safety problems, lack of education, negative impacts on mental health and social development, exploitation, perpetuation of the cycle of poverty, and long-term consequences for individuals and societies.