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The Endowment for Human Development
The Endowment for Human Development
Improving lifelong health one pregnancy at a time.
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Hatched Blastocyst

5 days

Hatched Blastocyst [Click for next image]
Source: Centro Riproduzione Assistita, Catania, Italy.

Note:

With the escape from the zona complete, the embryo is free to implant.

Label Key:

1. embryo at the blastocyst stage
2. shell of discarded zona pellucida
All ages referenced to fertilization, not last menstrual period.
Hatching Blastocyst
Hatching Blastocyst
Hatching Blastocyst
Hatching Blastocyst
Hatched Blastocyst
Hatched Blastocyst
Hatched Blastocyst
Hatched Blastocyst
Hatched Blastocyst
Hatched Blastocyst
Free Blastocyst (without zona)
Free Blastocyst (without zona)
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