Help identify wound.

[Unfocusedkey9]

My BTS a Halmahera , has developed a semi open wound on her tail. I'm a new bluey keeper so any help would be appreciated. Some details I think may be relevant.
Tank maintains humidity levels of 66-90 dropping and raising throughout the day.
Tank maintains a heat gradient of 65-74 on the cold side night to day. Heat from 70-84 on the warm end.
I have seen a few small bugs inside the tank that i have removed when spotted.
Substrate is a cypress mulch sphagnum moss mix.

[Janella]

Hello there. So first thing I noticed is that your temps are way to low for that species. You need a basking temp of 100-110. Then I wouldn't let your low end get lower than 72. Humidity needs to be 80-90%. Do you know how this wound happened? Do you have a heat mat or heat rock? It almost looks like a burn. I would have a reptile vet check I out.

[Unfocusedkey9]

There are no heat rocks or matts in the tank. it appears to be a somewhat of an open wound. Like abrasion from what i would guess? her basking spot reaches 95-102ish.
I currently have no idea where the wound came from. My best guess is rubbed raw on somthing but, i wouldn't think that anything in the tank would be capable of that. There is a stone in the front of her hide to encourage natural claw maint. I would imagine if it was the rock shes sliding and climbing over that her entire underside would suffer the same effects. Asfar as her temps go i got a ceramic heater trying to raise the rooms ambient. Its currently really cold here and im waiting on a RHP from pro products im in their production queue ..

[Noodlebasket]

Just to float an option out there, this could be from tail thrashing or pinching. I have heard of other lizards lashing their tails around and damaging them, tho I would be surprised if a skink did the same. And as far as the pinching, if they were able to get wedged somewhere and yanked their tail from a tight place? I agree tho that the best bet is to see a specialist reptile vet and maybe sherlock holmes the tank and see if anything comes to you?

[Janella]

Okay, either way I would have it checked. The only other idea would be an infection of some sort as was suggested, the tail got caught somehow. Let us know what the vet thinks.

[splashy07]

If you have seen bugs in the tank make sure they are not parasitic mites. Low temperatures and damp substrate often cause skin infections or scale rot.