Do ferrets shed

No, if they are on a proper diet (high protein, low carb/grain) ferrets do not really shed much. However, they will shed, probably a lot (depending on the climate where you live), in the spring and sometimes the fall. Ferrets grow winter coats and will shed them in the spring, but the shedding usually only lasts a week or two, then it's back to normal. Just keep them brushed during that period, and wash their bedding regularly.

If your ferrets sheds and does not regrow fur, this indicates a serious medical problem and should be taken to a veterinarian for a checkup