Woman standing outside and thinking about common thyroid myths.

Debunking thyroid myths and misconceptions

January 22, 2025


The thyroid gland is a small, butterfly-shaped organ in the front of the neck. This tiny powerhouse plays a crucial role in many bodily functions, including metabolism, heart rate, body temperature and cell growth. To carry out these functions, the thyroid produces hormones that regulate the speed of your metabolism (i.e., how quickly the body converts food into energy.
 

Problems with the thyroid gland can cause many different health concerns and symptoms. Many of these health concerns can be difficult to recognize as thyroid-related issues. An estimated 12% of Americans are expected to have a thyroid condition in their lifetimes, so it’s important to know fact from fiction when it comes to your thyroid. Let's explore some common myths and misconceptions about thyroid health.

 

Myth: Thyroid problems only affect women

While it's true that women are more likely to experience thyroid disorders, men can also be affected. Symptoms of thyroid dysfunction are often similar, regardless of sex. These symptoms can include low sex drive, hair loss, muscle weakness and lowered testosterone levels. Men may experience specific symptoms such as low sperm count.
 

Myth: Thyroid issues are always noticeable

Contrary to popular belief, symptoms of thyroid disease can be subtle or non-specific. This can make it tough to know if your symptoms are related to your thyroid. For instance, hypothyroidism (when the thyroid gland produces too little thyroid hormone) may cause fatigue, weight gain, dry skin, mood changes or heavy menstruation. On the other hand, hyperthyroidism (when the thyroid gland produces too much thyroid hormone) can lead to difficulty sleeping, weight loss, anxiety, rapid heart rate or irregular menstruation.
 

These symptoms could be caused by many different health conditions, so it's crucial to talk to your healthcare provider and consider thyroid testing when appropriate.
 

Myth: Thyroid problems are easily managed once diagnosed

Managing thyroid problems is not always straightforward. Treatment depends on the cause and type of condition. Some treatments may include medications such as antithyroid drugs, which stop the thyroid from producing certain hormones. Another treatment is radioiodine therapy, which damages thyroid cells to prevent the gland from making high levels of thyroid hormone. In certain cases, surgery may be necessary. Ongoing monitoring and adjustments to treatment are often required to effectively manage thyroid disease.
 

Myth: Thyroid conditions only occur in mid to late life

While some types of thyroid dysfunction may be more common in specific age groups, thyroid conditions can develop at any age. The American Thyroid Association recommends screening for thyroid dysfunction beginning at age 35 and follow-up testing every five years.
 

Myth: Weight issues are always associated with thyroid conditions

Although the thyroid plays a role in metabolism, weight management is influenced by multiple factors. It's important to understand that thyroid issues can affect much more than your weight. While weight changes can be a symptom of thyroid dysfunction, there are other important signs to look for.
 

By understanding these common myths and misconceptions about thyroid health, you can be better informed and seek appropriate medical attention when necessary. Remember: If you have concerns about your thyroid function, it's always best to consult with a healthcare professional for proper evaluation and guidance.
 

How is thyroid health tested?

To assess your thyroid health, healthcare providers typically recommend testing various thyroid hormones. These tests can help determine if your thyroid is functioning properly or if there are any underlying issues. Here are some of the key hormones that may be evaluated:
 

  • Thyroid-stimulating hormone (TSH): This test measures how hard your pituitary gland is working to stimulate your thyroid. A low TSH number can indicate hyperthyroidism (an overactive thyroid), while a high TSH number can suggest hypothyroidism (an underactive thyroid)
  • Free thyroxine (T4): T4 is the main form of thyroid hormone produced by the thyroid gland. Free T4 tests, in combination with TSH tests, are typically used as baseline tests for initial assessment of thyroid function
  • Free triiodothyronine (T3): T3 is the active form of thyroid hormone. Measuring free T3 levels can help determine if your thyroid is producing enough of the hormone
  • Thyroid peroxidase antibodies (TPO): These antibodies can indicate autoimmune thyroid disorders like Hashimoto's disease or Graves' disease
  • Thyrotropin receptor antibodies (TRAb): A high level of this antibody may suggest Graves’ disease
  • Antithyroglobulin antibodies: The presence of these antibodies may suggest an autoimmune disorder that affects the thyroid gland
  • Thyroid-stimulating immunoglobulins (TSI): TSIs are antibodies that cause the thyroid gland to release excess amounts of thyroid hormone into the blood. High TSI levels may be a sign of Graves’ disease or other thyroid conditions
     

Early detection and diagnosis are key to managing thyroid disorders. If you have any concerning symptoms or want to learn more about your thyroid function, consider Labcorp OnDemand's Standard Thyroid Test. This test measures both TSH and free T4 in your blood, providing valuable insights into your thyroid health.
 

Talk to your healthcare provider if you have any questions or concerns about your thyroid function. Understanding your hormone levels can be an important part of maintaining overall health and well-being. If you're ready to learn more about your hormone health, explore the range of hormone tests available through Labcorp OnDemand.