I haven't experienced much in way of regurge syndrom for several years, even with wc specimens. IMO, internal parasites are a small time problem(if addressed) and easily treatable. If you had a high parasite load(pinworms, roundworms, tapeworms), there would be some evidence of that in the stool.. segments of worms or whole pinworms(have a float done if you are not experienced with parasites). Some localities(species) simply have more sensitivity in terms of what their stomach can contain. If I fed my Cental American varieties of boa as I do my South American types, they would puke every time. And rather than say feed your Guyanan every 10 days, I would go so far to say feed them only after they have defecated. In my experience this would apply to Surinames/Guyanans, probably Argentines as well. I can't stress this enough, after a regurge allow 10-14 days before the next feeding. The "reset" period is essential in stopping the regurge from becoming cronic.
Good luck-
Matt Schubarth
Pet Nebula
2100 Stephens #116
Missoula, Montana 59801
406 541 9929

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