Underactive Thyroid: Symptoms, Causes & How It's Treated
Underactive Thyroid: Symptoms, Causes & Treatment Endocrinology & Women's Health Your Thyroid Is Probably the Reason You're Exhausted Fatigue, weight gain, hair falling out, feeling cold at room temperature. Millions of people live with these symptoms for years before anyone checks their thyroid. Here's what's happening — and what to actually do about it. Reem Aslam, MBBS (Final Year) · April 2026 · 13 min read 1 in 8 Women develop thyroid problems in their lifetime 7× More common in women than men 60% Of people with thyroid disease are undiagnosed In This Article What the thyroid actually does Symptoms: the full picture, including the ones that get missed What causes hypothyroidism Diagnosis: understanding your TSH, T4 ...