5. Low TSH induced hypothyroidism

Secondary and Tertiary hypothyroidism

Primary hypothyroidism means that there is a problem with the thyroid gland itself. It is unable to make enough thyroid hormone.

The term secondary hypothyroidism refers to a disease of the pituitary gland. If the pituitary does not making enough TSH to stimulate the thyroid gland then the thyroid is not going to make enough thyroid hormone.

Tertiary hypothyroidism refers to a disorder of another part of the brain called the hypothalamus. The hypothalamus makes Thyroid Releasing Hormone (TRH) is what tells the pituitary how much TSH to make.

secondary hypothyroidism from the hypothalmus, tertiary hypothyroidism is from the pituitary gland

Secondary and tertiary hypothyroidism can be caused by tumors in either the pituitary or hypothalamus. These are very rare conditions, and the treatment is beyond the scope of this guide.

More common are functional problems that interfere in the pituitary's production of TSH.

Labs which reflect this type of thyroid hormone are:

This pattern of hypothyroidism often does not respond well to thyroid hormone medications. For more information on, go to the section on Euthyroid Sick Syndrome and Subclinical Hypothyroidism.

 

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References

Thyroid Section
Table of Contents

1. Introduction

2. Thyroid Stimulating Hormone (TSH)

3. Beyond TSH

4. Conventional versus natural treatment for hypothyroidism

5. Low TSH induced hypothyroidism

6.Iodine deficiency

7. Auto-immune thyroid disease (Hashimoto's thyroiditis)

8. Celiac disease

9. Autoimmune polyendocrine syndrome

10. Why the body may want to make less thyroid hormone

11. Euthyroid sick syndrome & low T3 sick syndrome

12. Anti-thyroid diets

13. Heavy metals, toxins and & liver

14. Adrenals, stress, cortisol & low T3

15. Insulin, sex hormones, sleep & hormonal balance

16. Grave's disease & hyperthyroidism

Hyperthyroidism Supplemental - Best Foods Hyperthyroidism

Hyperthyroidism Supplemental - Best Supplements For Hyperthyroidism

17. Thyroid supplements and nutrition

18. Putting it all together

19. References


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