OBJECTIVE:

To review the mechanisms responsible for sperm DNA fragmentation and its methods of analysis. This includes a briefly review about the definition of DNA fragmentation; what characteristics make the sperm unique and different from other cells. We also give a discussion about the impact of the current techniques to evaluate sperm DNA fragmentation and its utility and clinical application. Lastly, there are practice recommendations regarding what our group considers to be the best approach for this subject.

METHODOLOGY:

Bibliographic search in the databases: Medline, Pubmed, Pubmed Central and Google Scholar with the keywords: DNA fragmentation, sperm DNA fragmentation, fragmentation of human sperm DNA and DNA fragmentation tests.

CONCLUSION:

The integrity of the paternal genome is of crucial importance to reach our goal of a healthy newborn. Current techniques are far from perfect in terms of predictability, selection and results. New technologies may give us the information missing in order to elucidate the role of sperm DNA fragmentation tests in the assisted reproduction lab.