Progression of nub by crown to rump lenth

I found pictures in an article that I thought may interest people. They show how nubs develop based on crown to rump length. I thought it was interesting to see the progression, and how female nubs do not change much, whereas male nubs begin relatively flat or bumpy (which would typically be around the 12 week mark) before emerging into a stacked nub.

Thanks :)

Awesome sway&wish, thanks for this. Any chance you can post the link to the article?

That's really neat! Thanks!

Are the picture progressions using the same baby for each gender? It's intesresting for sure. My two boys looked like the second boy picture. My nub this time doesn't look at all like the boy nubs, but it also doesn't look clearly like a girl nub either. My most recent nub pic baby had a CRL of 64 mm.

Here is the link. The article is not in English, so I can't actually read it (just the numbers)! As a guess, I think that they look like different babies ;)

http://www.scielo.cl/pdf/rchog/v75n2/art08.pdf

Awesomeness!

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Originally Posted by Sway&Wish

Here is the link. The article is not in English, so I can't actually read it (just the numbers)! As a guess, I think that they look like different babies ;)

http://www.scielo.cl/pdf/rchog/v75n2/art08.pdf

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I think it would have been better to show the progression on the same babies to see how it changed. If you are using different babies it's hard to say they are really changing versus just looked that way to start with.

I think they are trying to use representative shots of what the nubs look like as the baby grows. We know that boys don't look like the end shot to start with - both sexes begin looking very similar. These weeks/sizes sampled are the critical ones for outer genital development.

It could be the same baby; I can't read it!