You must wait until they are at least 9 months old (longer for some)
If they are male they will have a bump just before where the tail begins - see related links.
If they are female they will have one much smaller lump in the same place as the boys but harder to see and quite noticeably smaller - again, check the related links.
Hope this helps take good care of your cresties and hope i can help in the future!
Above the hemipenes in males, are pores. These pores are visable at birth but usually naked to the human eye. Using a 20X loup is best for hatchlings. Pores are scales marked out with a black circle in the middle of them.
Their should be a bulge under their tail.
If a Gecko has a dark V shape on it's underbelly it's a boy also if they have 2 bulges above the tail.
It is hard to tell the gender of a leopard gecko when young, but after it has reached maturity the male will have two bulges below his vent.
u flip them over and if it looks like they have nipples their a girl and if they don't there a boy
Depends on the species, most male geckos have a noticeable bulge, or large pores. It's difficult to tell until they reach maturity.
males with have a v shaped section of pores on the bottom section of the belly. these pores will often look as if they are secreting wax.
how do i tell if my my turtle is a girl or a boy?...
leopard geckos will have a swelling where the tail starts on the stomach side and dots by the pelvic area shaped like a V if its a male. not sure about panther geckos though
you cannot tell if the caterpillar is boy or girl
can you tell if a fish is a boy or girl by the tail
its harder for a boy to tell if a girl likes him
YOu can not tell the difference between a girl or boy starfish.