Hypothyroidism in Dogs

Overview

Hypothyroidism a disease of thyroid deficiency in dogs.Hypothyroidism is a clinical condition resulting from a lowered production and release of T4 and T3 hormones by the thyroid gland.

Symptoms

Symptoms include hair loss that involves the front of the neck down to the chest, the sides of the body, the backs of the thighs, and the top of the tail. The hair is excessively dry and brittle, and falls out easily. The exposed skin is dry, thick, puffy, and darkly pigmented. Some dogs develop secondary seborrhea.

Other signs of hypothyroidism include weight gain, intolerance to cold, a slow heart rate, absence of heat cycles, lethargy, and a variety of nonspecific symptoms that could be due to a number of other diseases.

Treatment

Hypothyroidism is permanent, but can be effectively treated with daily or twice-daily thyroid hormone replacement therapy. Treatment for hypothyroidism can cost hundreds of dollars. Pet health insurance helps pay for tests and medication when your dog suffers from illnesses.

Cost: $100 to $200 for the tests. Ongoing medications typically cost $10-30 per month.

Incidence by Dog Breed

This chart shows the incidence rate for each breed for Autoimmune Thyroiditis, which is a primary cause of Hypothyroidism.

Breed% Autoimmune Thyroiditis# of Evaluations
English Setter26.4984
Eurasier21.760
Spanish Water Dog19.357
Irish Red & White Setter16.0119
Shetland Sheepdog12.21,216
Boxer11.21,167
Dalmatian11.6912
Kuvasz11.2340
Tibetan Terrier10.874
Welsh Springer Spaniel8.7873
German Wirehaired Pointer9.1547
Rhodesian Ridgeback9.34,389
English Cocker Spaniel9.7103
Spinone Italiano9.1187
Tibetan Mastiff8.3120
Afghan Hound7.0557
Havanese8.9463
Irish Setter8.8738
Ibizan Hound8.571
Nova Scotia Duck Tolling Retriever8.3763
Pharaoh Hound8.1123
Beagle7.4176
Old English Sheepdog7.8449
Hovawart7.765
American Pit Bull Terrier7.199
Giant Schnauzer6.1553
Akita6.5672
Borzoi6.21,102
American Staffordshire Terrier6.6228
Cocker Spaniel6.5247
Leonberger5.51,018
Golden Retriever5.63,410
Wirehaired Pointing Griffon5.951
Basenji5.0462
Bloodhound5.7159
Pointer5.7140
Canaan5.6126
Flat-Coated Retriever4.4181
Standard Schnauzer4.7150
Great Dane3.93,582
Doberman Pinscher3.41,699
Keeshond4.3445
Portuguese Water Dog3.066
Petit Basset Griffon Vendeen3.391
Hybrid4.4385
Scottish Terrier3.3184
German Pinscher3.197
Anatolian Shepherd3.5171
Australian Terrier4.1169
Field Spaniel3.2379
Italian Greyhound1.8445
Labradoodle3.7492
Coton de Tulear3.5571
Border Collie3.6168
Schipperke3.3425
Collie2.7332
Bouvier des Flandres2.71,405
Alaskan Malamute2.8181
Alaskan Klee Kai3.1449
Cardigan Welsh Corgi3.165
Weimaraner2.2548
English Springer Spaniel2.5238
Mastiff2.61,869
Chesapeak Bay Retriever2.8178
Great Pyrenees1.4147
Labrador Retriever2.2846
Gordon Setter2.5157
Black Russian Terrier1.6122
Greyhound0.085
Rottweiler2.01,012
Bernese Mountain Dog1.7696
Vizsla2.11,165
Belgian Malinois2.2137
Poodle2.13,500
German Shorthaired Pointer2.2491
German Shepherd Dog2.1756
Pomeranian1.4146
Bearded Collie1.2724
Australian Shepherd2.1240
American Water Spaniel1.953
Berger Picard1.856
Bullmastiff1.8437
Border Terrier0.059
Chinese Shar-Pei1.7174
Shiloh Shepherd1.3305
Dogue de Bordeaux0.5197
Silken Windhound1.0294
Belgian Tervuren1.01,087
Newfoundland1.3965
Kerry Blue Terrier1.195
Siberian Husky1.0200
Samoyed1.0295
Whippet1.0102
Norwegian Elkhound0.9110
Chow Chow0.8241
Irish Water Spaniel0.4445
Belgian Sheepdog0.3314
French Bulldog0.5214
Bulldog0.0321
Briard0.086
Dachshund0.063
Cavalier King Charles Spaniel0.0109
Irish Wolfhound0.059
Yorkshire Terrier0.055
Shiba Inu0.055
Greater Swiss Mountain Dog0.0128
Bichon Frise0.080

 

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