Ideas worth spreading

How in vitro fertilization (IVF) works

3,166,737 views | Nassim Assefi and Brian A. Levine • TED-Ed

Infertility affects 1 in 8 couples worldwide. But in the last 40 years, more than 5 million babies have been born using in vitro fertilization (IVF). How does it work? Nassim Assefi and Brian A. Levine detail the science behind making a baby in a lab.

Infertility affects 1 in 8 couples worldwide. But in the last 40 years, more than 5 million babies have been born using in vitro fertilization (IVF). How does it work? Nassim Assefi and Brian A. Levine detail the science behind making a baby in a lab.

This video was produced by TED-Ed, TED’s youth and education initiative.

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Meet the educators

Nassim Assefi

Doctor, novelist, Guest Host

Physician-novelist and activist writer Nassim Assefi confronts health and human rights challenges around the globe.

Brian Levine

Fertility doctor, author, researcher

Board-certified in both reproductive endocrinology and infertility and obstetrics and gynecology, Dr Levine is the founding partner and practice director of CCRM New York. He has lectured nationwide on how physicians and laboratory personnel can adopt common technologies to improve clinical efficiency.

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TED-Ed Original lessons feature the words and ideas of educators brought to life by professional animators.

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This video was produced by TED-Ed, TED’s youth and education initiative.

Read more about TED-Ed.