Research thesis entitled "FACTORS AFFECTING THE DECAY OF FAMILIES SERVED IN ASSOCIATION NEW STEPS DISTRICT OF LAREDO IN THE YEAR 2015", arose from the need to understand what are the circumstances that contribute to a family disintegrates in terms of structure and functionality as the study population are single-parent families and large type where mothers are the ones who learned the economic costs according to food, education, clothing, etc. This research aims to identify how family factors influencing characterized by problems of violence, alcoholism and breach of parental roles in the disintegration of families; likewise know how social factors of migration and crime influence the disintegration of families, and finally determine how they influence economic factors characterized by unemployment and low income in the disintegration of families. The methods used were the inductive meth...