1 doctor weighed in:

What is the morula?

1 doctor weighed in
Dr. Scott Roseff
Fertility Medicine

In brief: An embryo stage

A fertilized egg is a zygote.
Then it grows (by the third day after fertilization) to the embryo stage. On day 4 of growth it's called a morula, and on the fifth day it's called a blastocyst. Hope this helps!

In brief: An embryo stage

A fertilized egg is a zygote.
Then it grows (by the third day after fertilization) to the embryo stage. On day 4 of growth it's called a morula, and on the fifth day it's called a blastocyst. Hope this helps!
Dr. Scott Roseff
Dr. Scott Roseff
Thank
Read more answers from doctors