spot

I've noticed my guinea pig hasn't been eating or pooping much and she had a wet behind when i picked her up to check on her. I cleaned her up and noticed she had this spot on her underside and couldn't find anything online that looks like it, it's a brownish colored lump and at first i thought...

I'm not sure if it’s a fungal infection or not but my 1 year old female guinea pig has a small patch of dry scaly skin behind each ear. She has had it for a long time but I always thought it was normal. She also gets flaky ears sometimes and often has a small (but not abnormal) amount of crust...

I found this on his underside. He doesn’t seem to be in pain but it’s the first time I’ve seen this. I have no idea what this is or what I should do. Please help out a worried owner!