Tia is over 13 now, but for the past couple of years has lost fur from the top side of her docked tail, and on top of her muzzel.
She's had pancreatitis, and recently she's being tested for renal or adrenal problems - waiting for the blood results.
For the past 3 or so months, her fur has stopped growing altogether. She has had bits shaved for blood tests etc, and those patches still look newly shaved. Her hair is thinning so much as we brush her, or when she had a rolling session, that you can see her skin through the fur in her shoulders.

Has anyone had experience of such severe fur loss in an old dog, and did yoiu find a way of getting the fur healthy again? Her skin is slightly dandruffy, but doesn't feel dry.
I might have to buy her a coat.

Just to add - you can see the lovely glossy coat she once had by the pic on the left!