I HAVE A MIN -PIN WITH HAIR LOSS IN SPOT THE RT SIDE BELOW THE RIB. THE VET HAS CHECKED NOTHINGFOUND. COULD BE THYROD . THE DOG NEVER STRACHES . DOG IS 4YS OLD AND IN GOOD HEALTH .
We can see thinning of the coat with thyroid conditions. Whether your pet has a thyroid condition or not, I do not know. Talk to your vet about it. vetcare