My 3 month old ferret is showing some hair loss. Need to worry?

I got a two ferrets a few weeks ago. My small female had a white patch on her side where she had no guard hairs. After we brought her home the guards seemed to be growing in, but now the spot seems to be thinning and spreading. We are in the process of trying to change their diet, and treating for fleas. One of my family members was kind enough to give us the fleas. Could the diet change and the flea shampoo be causing this? My male is the same age, and is completely healthy with a nice full coat. They both play well, and eat well too. They will be going to the vet soon for shots, but I don't want to give them some crazy meds for something they may not have. I have heard about a vet giving a ferret medication for mites when she actually had adrenal. I don't think my 3 month old fuzzy has this. Or is it possible for a fuzzy so young to develope this? Should I be really worried about this?My 3 month old ferret is showing some hair loss. Need to worry?
it sounds more like mites or skin cancer. Make sure u take them to the vet. Make sure you are maintaining a clean cage and in an area where there is not alot of moisture. Skin cancer can also appear the same as mites.My 3 month old ferret is showing some hair loss. Need to worry?
Well its probably not a death situation but I would take it to a local vet just to be sure.
When in doubt have a vet check it out!
yes id take it to the vet to get checked