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My female Standing's Day Gecko was biting at the tip of her tail this morning. It seemed as if there was something irritating her. A few hours later she succeeded in pulling off a 1.5 inch section of her tail!! She seems to be feeling more at ease now, at least. But I'm wondering what could have caused such an irritation that she would want to bite off her own tail.
When I purchased her 8 months ago, she had a half-inch section of tail that was regrown. I wonder if she had this problem earlier in her life as well? Has anyone experienced this phenomenon??

I've watched many of my geckos nibbling at their tails to remove remnants of a shed, but never resulting in tail loss. That is something I've never heard of in any sp.

E
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I don't have too much knowlege of day geckos, but I do know that with snakes, if they don't shed off the tip of the tail it can block the blood flow to the tail and the tail will fall off. I have had my Central American Banded Gecko lose some toes due to this.
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Steve
2.0 Corn Snakes
2.0 Ball Pythons
0.1 Veiled Chameleon
1.1 Leopard Geckos
1.1 Rudis Chameleons
0.1 Giant Day Gecko
0.0.3 Red Ear Sliders
0.0.2 Sulcata Tortoises
1.0 Central American Banded Gecko

From what I hear, male Crested geckos will drop tails intentially if housed with another male or simply later on in their life to gain advantage over the others. Since they do not store fat in their tails, it offers added agility. Could be the same with the standing's but since she has regrown the tail there it may be that as well.