hi
i have got a brown dobe bitch who suddenley has had all the brown fur on her ears fall out
my vet is at a loss any ideas???
thanx

Could be lots of things, stress, infection, allergy.......................... the list is potentially very long.

Hi

Are they thickening as well?

Apart from the reasons that Tohme has mentioned it can be moulting as they seem to start moulting at their head and gradually work their way down to their back legs or another reason can be underactive thyroid.

If they are very dry as well try rubbing in vaseline or if outside in the sun a lot I imagine a sun block could be a good idea