Thin Doberman With Hair Loss: Is It Hypothyroidism?

Dobermans do have a high risk of hypothyroidism. But hypothyroid dogs usually gain weight and are less active, so a thin, very active dog with chewing and scaly hair loss is more likely to have allergies, mites or a skin infection. Blue and fawn Dobermans can lose hair from a condition called color dilution alopecia, but red (chocolate) Dobermans aren't affected, so it's unlikely in her. There's no good evidence that red Dobermans are more prone to hypothyroidism than black ones.

Ask your vet for skin scrapings, a skin cytology and, if needed, a thyroid panel (not just T4). Flea allergy is still possible even with flea control.

See hypothyroidism in dogs.

This is general information, not a diagnosis. Please follow your own vet's advice.