So my rat got an emergency spay for unknown vaginal bleeding about 3-4 weeks ago. She’s recovering nicely until I noticed this lump right above her leg on her left side. I felt it a little and she didn’t squeak so I’m guessing it’s not tinder but it’s not hard like I’d expect a tumor to be. Wondering what this could be and if I should calll the vet tomorrow. She is eating, playing and doing all her favorite things, so no signs or symptoms of illness yet. I just noticed this one sided lump that honestly just feels like fluid. Like when she was really sick one time they injected her with fluids and some abx and this feels sort of like that… not really hard at all though I’ve only gentle palpated the mass and not really squeezed it or anything.