Hypothyroidism Overview

Hypothyroidism (underactive thyroid) is a condition in which your thyroid gland doesn’t produce enough of certain crucial hormones.

Hypothyroidism may not cause noticeable symptoms in the early stages. Over time, untreated hypothyroidism can cause a number of health problems, such as obesity, joint pain, infertility and heart disease. Accurate thyroid function tests are available to diagnose hypothyroidism. Treatment with synthetic thyroid hormone is usually simple, safe and effective once you and your doctor find the right dose for you.

Symptoms

When to see a Doctor

See your doctor if you’re feeling tired for no reason or have any of the other signs or symptoms of hypothyroidism, such as dry skin, a pale, puffy face, constipation or a hoarse voice. If you’re receiving hormone therapy for hypothyroidism, schedule follow-up visits as often as your doctor recommends. Initially, it’s important to make sure you’re receiving the correct dose of medicine. And over time, the dose you need may change.

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