Hypothyroidism is a condition where the Doberman Pinscher’s thyroid gland does not produce enough thyroid hormone to maintain the Doberman’s metabolism. Hypothyroidism may be characterized by symptoms such as hair loss, dry skin or weight gain. There have been some studies that indicate that aggression may be linked, in some cases, to low thyroid hormone levels. All Dobermans should be screened annually at age 4 and up for thyroid disease. The screening test is a simple blood test that detects levels of thyroid hormones (T3 and T4) and hormone associated-proteins (thyroid stimulating hormone [TSH], autoantibodies). Low hormone levels and/or high binding protein levels generally indicate that thyroid medication could be indicated for your Doberman. Once started, thyroid medication should not be stopped. The medication is inexpensive and must be taken on a daily basis. Any Doberman on thyroid medication should be monitored at least on an annual basis or if the symptoms do not resolve or become worse.
The following web resources are provided for a more complete description of symptoms and diagnostic tests and are not a substitute for consultation with your Veterinary professional:
http://www.nzymes.com/Articles/autoimmune_thyroiditis_by_Dr_Jean_Dodds.htm
http://www.thyroid-info.com/articles/dog-hypo.htm
http://www.newmanveterinary.com/Hypothyroid.html
http://www.marvistavet.com/html/body_hypothyroidism.html