Terminology for pregnancy loss prior to viability: a consensus statement from the ESHRE early pregnancy special interest group

Hum Reprod. 2015 Mar;30(3):495-8. doi: 10.1093/humrep/deu299. Epub 2014 Nov 5.


Pregnancy loss prior to viability is common and research in the field is extensive. Unfortunately, terminology in the literature is inconsistent. The lack of consensus regarding nomenclature and classification of pregnancy loss prior to viability makes it difficult to compare study results from different centres. In our opinion, terminology and definitions should be based on clinical findings, and when possible, transvaginal ultrasound. With this Early Pregnancy Consensus Statement, it is our goal to provide clear and consistent terminology for pregnancy loss prior to viability.

Keywords: ectopic pregnancy; miscarriage; non-visualized pregnancy loss; pregnancy loss; recurrent pregnancy loss.

Publication types

  • Review

MeSH terms

  • Abortion, Habitual / diagnostic imaging
  • Abortion, Spontaneous / classification*
  • Abortion, Spontaneous / diagnostic imaging
  • Consensus
  • Embryonic Development
  • Female
  • Humans
  • Pregnancy
  • Terminology as Topic*
  • Ultrasonography, Prenatal