“…In the vast majority of cats with hyperthyroidism weight loss, hyperactivity, increased body temperature, diarrhea, cardiovascular problems (tachycardia or other relevant arrhythmias, systolic murmurs, hypertrophic cardiomyopathy, tachypnea, dyspnea), altered behavior, stress intolerance, muscle weakness/ atrophy, hair coat changes, polyuria/polydipsia, systemic hypertension, polyphagia, vomiting, increased frequency of defecation (Bucknell, 2000;Mooney, 2010;Klein, 2012;Peterson, 2014;Scott-Moncrieff, 2015 signs may be subtle, especially in early stages (Bucknell, 2000). Some of hyperthyroid cats present excessive grooming behavior causing alopecia or crusty rash, accompanied with intense itching resembling miliary dermatitis (Peterson, 2012).…”