This research with drug-addicted teenage mothers seeks to establish the existent relationship between the use of psychoactive substances and the abuse towards their children. Researchers have worked with a sample of 50 teenagers aged between 13 and 19. The results reveal the existence of a statistically significant relation between psychoactive substance use and child abuse; likewise, they show correlations with the components of psychological abuse, by carelessness and by physical abuse. Differences were found between the group of mothers who had a child and those that had two, both at the level of consumption and abuse. Similarly, there are differences among age groups in terms of consumption and abuse.