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Common Symptom Guide

Fatigue, Weight Gain, Brain Fog? It Could Be Hashimoto's.

Hashimoto's is the most common cause of hypothyroidism — and it's frequently missed by standard thyroid testing.

Reviewed by McKell Johnson, FNP-BC, Clinical Director · Originally developed by Dr. Justin Abbott, D.O., Founder
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What's Behind It

What Hashimoto's Actually Is

Hashimoto's thyroiditis is an autoimmune condition where the immune system gradually attacks the thyroid gland, slowing hormone production over time. It's the leading cause of hypothyroidism in the United States.

Standard thyroid panels (just TSH) often miss it. A full thyroid antibody panel is usually needed to catch Hashimoto's early — before symptoms become severe.

Common Hashimoto's Symptoms

Persistent fatigue
Unexplained weight gain
Brain fog or difficulty concentrating
Cold intolerance
Dry skin and hair thinning
Depression or low mood
How We Approach It

Testing Beyond the Standard Panel

We run a full thyroid panel — including antibodies, not just TSH — to catch Hashimoto's accurately. Treatment addresses both the thyroid and the underlying autoimmune activity.

From Our Care Team

Hashimoto's gets missed constantly because most standard panels only check TSH. If your thyroid antibodies were never tested, you may not have the full picture yet.

Reviewed for accuracy by McKell Johnson, FNP-BC, Clinical Director, and the Abbott Health & Wellness care team.

Related Conditions

Often connected to Hashimoto's: thyroid problems, weight gain, cold hands & feet, and chronic fatigue. Why "normal" thyroid labs aren’t always normal → Still tired with "normal" labs? →

What Patients Say
Common Questions

Hashimoto's FAQs

What patients ask most before their first appointment.

Hashimoto's thyroiditis is an autoimmune condition where the immune system attacks the thyroid gland, gradually reducing its ability to produce hormones. It's the most common cause of hypothyroidism in the U.S.
Standard thyroid screening often only checks TSH levels, which can appear normal in early Hashimoto's. A full panel including thyroid antibodies (TPO and thyroglobulin) is needed to accurately diagnose it.
Yes. While there's no cure for the autoimmune process itself, thyroid hormone levels can be optimized and monitored, and addressing underlying triggers can help reduce symptoms and slow progression.
Before You Book

Two Things Worth Knowing

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Get the Full Thyroid Panel Your Symptoms Deserve.

Comprehensive thyroid and antibody testing, and a real conversation with McKell Johnson, FNP-BC.