During the last few years, scientific production through research articles has increased, however, it is necessary to be certain that thescientific journals where they are published meet quality and impact indicators, are indexed in important databases (Scopus, Web ofScience, Medline, Scielo, Redalyc, Dialnet, etc.) and that they are not predatory journals. These types of journals publish articles in a fewdays, do not perform peer review, charge processing fees and send e-mails offering their services. In short, they are a threat to scientificintegrity and quality because they publish articles of very low or zero rigor and contribution to science, so researchers should detect themand avoid publishing in them