The use of gerunds in Spanish presents difficulties for authors of the various medical disciplines. In order to help clarify some doubts about this, explanations are given about their correct use, and also about those uses which should be avoided because they are mistakes. The opinions of pres-tigious authors, both in Cuba and abroad, were taken into account. Some examples of correct and incorrect uses in articles submitted for publication in the journal Medicentro Electrónica are given.
