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What is the difference between primary and secondary sterility?

By Andrea Rodrigo (embryologist).
Last Update: 01/02/2017

Primary sterility is when a couple has never achieved pregnancy and secondary sterility when, after having already had a child, the couple does not achieve the second pregnancy.

The same applies to infertility. Primary infertility means that the first pregnancy is not successful, while secondary infertility means that, after the birth of a first child, the pregnancy of the second ends in abortion or any other abnormality that prevents the development until delivery.

 Andrea Rodrigo
Andrea Rodrigo
Embryologist
Bachelor's Degree in Biotechnology from the Polytechnic University of Valencia. Master's Degree in Biotechnology of Human Assisted Reproduction from the University of Valencia along with the Valencian Infertility Institute (IVI). Postgraduate course in Medical Genetics.
Embryologist. Bachelor's Degree in Biotechnology from the Polytechnic University of Valencia. Master's Degree in Biotechnology of Human Assisted Reproduction from the University of Valencia along with the Valencian Infertility Institute (IVI). Postgraduate course in Medical Genetics.