Although it could be something like Calico coming out, or something else, if you said it happened overnight after a shed, I can only think of one thing.

I've seen this several times in Boas.

Whenever they endure extreme topical stress - ie. Overheating, extremely dank/dirty/moist conditions, rolling around in its own regurge (stomach acids), this triggers a shed cycle which then comes off prematurely, sometimes removing color and/or scales.

I've seen this with a hypo that was overheated, left on a doorstep in the sun.
That guy was a colombian hypo and then looked like a dark central american.

I also saw this with a red group pastel that was able to roll around in its regurge, and also with a boa that was attacked by a mouse.


Did the animal undergo stress like this recently?

Here's the red group before and after.







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Thanks and take care - Joe Rollo
'Tis not the stongest of the species that will eventually survive, nor the most intelligent, but the one most responsive to change' Charles Darwin

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