Buldge on Female Emp

Hello all, new to this forum and I've got a curiosity question for you about one of my newest emps.

This past weekend I was at a reptile show and couldn't help myself but to pick up so new emps. There were dozens of them in a single cage so when I bought a couple, the guy at the table just reached in and grabbed whoever. Well, two were males and one was a female.

My issue is with the female though. I'm no good at aging emps as I've only gotten into keeping them in the past year. So at first I thought maybe she was gravid, but she just doesn't look right making me think it's an injury, a birth defect, a disease, or who knows what else XD

Symptoms:
- Her "skin" buldges out near her anterior region, moreso on one side than the other.
- She's not fat, the buldginess is concentrated to the front half of her body. The rest of her looks normal to me.
- She seems otherwise healthy, moves around quite a bit and is eating.

Pictures:





I can take more pictures if necessary.

So, any thoughts or advice? Any idea what it is or if I should be concerned about it? Thanks for your time!

I cant help you with the bump, but as far as the issue of her age, I would say either 5th or 6th instar considering how red her telson is. Hope that helps at all, good luck with her! Whats her name by the way, just out of curiosity?

The bump could be an injury. It may caused by pinches or a sting from the other Pandinus imperators which housed together before she was sold to you.

Not to worry about it, it's unlikely to be of any critical danger to her health. Keep her in the right captive conditions and she'll be fine. Swelling might reduce in a couple of months.

Judging from the the pictures, she seemed to be an adult.
There's a good chance that she might already be in gravid status (from the communal setup with the other males), Hence, continue to feed her well and who knows, she might give you a brood soon