Here is a list of symptoms that may mean your dog is
hypothyroid (from Dr. Jean Dodds)
Alterations in Cellular Metabolism
- lethargy mental dullness
- exercise intolerance neurologic signs like
- polyneuropathy
- seizures
- weight gain cold intolerance
- mood swings hyperexcitability
- stunted growth chronic infections
Neuromuscular Problems (like loss of smooth muscle tone)
- weakness (esp. hind end) stiffness
- knuckling/dragging feet laryngeal paralysis (bark changes)
- incontinence facial paralysis (droopy)
- head tilt “tragic” expression (looks old/sad
- drooping eyelids muscle wasting (temporal, withers)
- ruptured cruciate ligament megaesophagus (reflux gastritis)
Dermatological Diseases
- dry/scaly skin and dandruff coarse, dull coat
- hyperpigmentation “rat tail” “puppy coat”
- chronic offensive skin odor pyoderma or skin infections
- myxedema
- bilaterally symmetrical seborrhea with greasy skin
- hair loss (or dry skin)
- demodetic mange
Reproductive Disorders
- infertility prolonged interestrus interval
- lack of libido absence of heat cycles
- testicular atrophy silent heats
- hypospermia (low sperm) aspermia (no sperm)
- pseudopregnancy weak, dying or stillborn pups
Cardiac abnormalities
- slow heart rate (bradycardia) cardiomyopathy (esp. in
- cardiac arrhythmias (Greyhounds, Dobies and Salukis)
Gastrointestinal Disorders
- constipation diarrhea
- vomiting
Hematological Disorders
- bleeding
- bone marrow failure, which can lead to low white blood cells, low
- red blood cells, low platelets
Ocular Diseases
- corneal lipid deposits corneal ulceration
- uveitis keratoconjunctivitis sicca (dry eye)
- infections of the eyelid glands
- Meibomian gland, Vogt-Koyanagi-Harada Syndrome
Other associated diseases
- IgA deficiency loss of smell (dysosomia)
- loss of taste