Hypothyroidism — Symptoms, Causes and Diagnosis

What does it mean to have an underactive thyroid, and how can it affect your health?

In this episode of the Endocrine Echo Lounge, I explain hypothyroidism in simple, easy-to-understand terms, exploring its common symptoms, causes, and diagnosis.

We discuss how hypothyroidism can cause fatigue, feeling cold, constipation, dry skin, difficulty concentrating, and weight changes—and why these symptoms do not always mean that your thyroid is the problem.

I also explain Hashimoto's thyroiditis, a common cause of hypothyroidism, and how other forms of thyroiditis can sometimes cause temporary changes in thyroid function. You'll learn why thyroid blood tests are essential for diagnosis and why symptoms alone are not enough to determine whether your thyroid is underactive.

Whether you're experiencing symptoms, have recently learned that your thyroid tests are abnormal, or simply want to understand thyroid health better, this episode offers a practical, evidence-based introduction to hypothyroidism.

Join me as we make thyroid health easier to understand.

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Disclaimer: This podcast is for educational purposes only and is not a substitute for individualized medical advice.

What can your thyroid blood tests actually tell you?

In this episode of the Endocrine Echo Lounge, Doctor Henry explains how to look at TSH, Free T4, and T3 together to understand what may be happening with the thyroid.

We’ll explore the common patterns seen with hypothyroidism, hyperthyroidism, subclinical thyroid disease, normal thyroid function, and less common patterns that may require further evaluation.

For example, a high TSH does not always mean the same thing. If the Free T4 is normal, the pattern may suggest subclinical hypothyroidism. If the Free T4 is low, it points toward a different thyroid problem. The important lesson is that thyroid tests need to be interpreted together rather than by looking at one number alone.

We’ll also discuss why TSH is usually the starting point, when Free T4 and T3 are helpful, and what doctors consider when thyroid results don't seem to fit together.

The goal is to make thyroid testing easier to understand and help you better understand what your own thyroid results may be telling you.

Disclaimer: This podcast is for educational purposes only and is not intended to provide individual medical advice or advertise any products. Always discuss your personal test results and treatment options with your healthcare professional.

If you find this episode helpful, please subscribe to the Endocrine Echo Lounge and share it with someone who may benefit from it.

in this episode of the Endocrine Echo Lounge, Doctor Henry explains how thyroid testing is used to evaluate thyroid function and uncover the cause of thyroid disease.

We take a practical look at TSH, free T4, and T3, including why T3 can be especially helpful when evaluating hyperthyroidism and T3 thyrotoxicosis. We also discuss TPO antibodies, thyroglobulin antibodies, and TRAb, including the important distinction between stimulating, blocking, and neutral TSH-receptor antibodies and when a specific test such as TSI may be appropriate.

The episode also explains why reverse T3 is generally not useful in routine thyroid evaluation and discusses factors that can interfere with thyroid blood tests, including biotin, medications, changes in thyroid-binding proteins, and laboratory assay interference.

Most importantly, we discuss why thyroid tests should not be interpreted as isolated numbers. The results need to be considered together with the patient's symptoms, medications, supplements, examination, and overall clinical picture.

If you've ever wondered what your thyroid blood tests actually mean, this episode provides a straightforward, endocrinology-based guide to understanding the basics of thyroid testing.

Subscribe to the Endocrine Echo Lounge and share this episode with someone who may benefit from learning more about thyroid health.

Disclaimer: This podcast is for educational and informational purposes only. It is not intended to provide individual medical advice, diagnose or treat any medical condition, or replace consultation with your healthcare professional. The information discussed is not intended to advertise or promote any products.