Dogs participate in the maintenance of leishmaniasis as a reservoir in urban areas. The Visceral Leishmaniasis Surveillance and Control Program (PVCLV) of the Ministry of Health determines the euthanasia of seroactive dogs. The human-animal relationship has become closer to the point that zoonoses are gaining greater attention from health services, and the euthanasia of these animals has an impact on the multispecies family. The maintenance of euthanasia as an action to control the disease is questioned. With the approval of medication and the development of prevention methods, guardians question the action recommended by PVCLV. This review highlights the importance of health education, environmental management, responsible custody and public policies, highlighting current legislation and its controversies, in addition to the fact that the emotional impact of euthanasia is not limited to the animal's family, but also to the professional who performs it, and that as the only action to control leishmaniasis it is ineffective and may worsen the epidemiological situation of the disease.