The hair coat usually has the most significant abnormality in which hair loss becomes prevalent. Often hair loss begins on the tail and becomes generalized. The hair is dull, dry and brittle. Neuromuscular signs include most commonly weakness and exercise intolerance. Reproductively, if the female is intact she can suffer infertility and in the male, there commonly is testicular atrophy.
Diagnosis is by routine blood test, and a thyroid function test.
Canine Hypothyroidism is treatable by supplementing the thyroid hormone. The skin and weight abnormalities may take several weeks to months to improve. If your dog exhibits some or all or these symptoms, please alert your veterinarian.