Thyroid Health 101: Signs, Symptoms and When to Get Tested

The thyroid is a small, butterfly-shaped gland in the neck that produces hormones regulating metabolism — essentially, how your body converts food into energy. When it produces too much or too little hormone, the effects can show up in ways that are easy to mistake for something else entirely.

An underactive thyroid (hypothyroidism) can cause fatigue, weight gain, feeling cold more easily, and low mood. An overactive thyroid (hyperthyroidism) can cause the opposite — unexplained weight loss, a racing heartbeat, and feeling unusually anxious or restless. Because these symptoms overlap with many other conditions, thyroid issues are often only confirmed through a blood test.

A standard thyroid panel usually measures TSH (thyroid-stimulating hormone) along with T3 and T4, the hormones the thyroid itself produces. TSH is particularly useful because it's produced by the pituitary gland in response to thyroid hormone levels, making it a sensitive early indicator when something is off.

Thyroid conditions are common and, once identified, are usually very manageable with the right treatment plan from a doctor. The key first step is simply getting tested if you notice persistent, unexplained symptoms.

This article is for general information only and isn't a substitute for a proper medical evaluation.