Phelsuma grandis
We got these guys last week and the next day I noticed this spot on the bottom of his (?) Tail when he was on the glass.
Is this something that will heal on its own? Is there anything we can do to help him?
In the last few days it seems to have swollen and now his tail hangs a lot of the time he’s upside down.
Thanks for any help!
Welcome to the community.
That does look like it might be broken.
Normally I would say put some raw honey on it, but if they lick it off, it could cause issues.
I’m not very versed in gekos, maybe @t_h_wyman could answer your question? I think a vet visit would be an idea since it’s close to the cloaca, even if this particular species of geko can shed it’s tail and regrow.
Aaawwwww. Poor little guy! Maybe you could apply some vitamin E oil on it? But if there is swelling there might be an infection going on which would definitely warrant a trip to the vet……
I hope he gets better! 
Has his tail been shut in a door? That’s what it looks like…
If broken (which you can’t know unless vet) that would explain how it hangs as shouldn’t be doing that.
I’d take a trip to the vets.
If the tail was usable when you got him but now isn’t, I’d take it to the vet. Had something similar happen with a cat. The tail wasn’t broken, she had an abscess, but due to the lack of space in the tail itself, an infection can put pressure on the spinal nerves. This causes a loss of sensation and tail function. The longer it’s left, the more likely the damage will be permanent.
Two things:
First, the swelling is a bit of a concern and could indicate an infection. As a start I would use a topical on it like Neosporin (WITHOUT numbing agent as that has proven toxic to a number of herps) but I would also advocate a visit to a vet.
Second, “floppy tail” is something that was not uncommon with grandis a while ago. It was usually an indicator of an improper diet, back in the days before things like Pangea/Repashy/etc. It can also be a side effect of injury as well as an indicator of stress from overcrowding or being stuck with an overly dominant animal. Once it has happened it is unlikely the animal’s tail will ever return to normal behaviour
