What Are the Symptoms of an Overactive Thyroid?

In the United States, about 1.2 percent of the population suffers from an overactive thyroid, which occurs when this gland produces an excess number of hormones. 

Thyroid hormones regulate your body’s energy use, thus affecting almost all your organs. Producing too many of these hormones can be detrimental to your heart, bones, and muscles. It can even cause issues such as an irregular menstrual cycle and infertility.

Fortunately, an overactive thyroid is treatable. However, being aware of the symptoms of hyperthyroidism is crucial. 

This article will help you recognize the signs of an overactive thyroid so you can seek out medical assistance before your condition deteriorates. 

Overactive Thyroid Symptoms

High amounts of thyroid hormones can cause a very high metabolic rate. As a result, many people start to display symptoms such as elevated blood pressure, a rapid heart rate, and trembling of the hands or fingers. 

Other clear signs of hyperthyroidism include experiencing more frequent bowel movements, increased appetite, and weight loss. 

In addition, some people develop sensitivity to heat and notice that they sweat excessively. Those with an overactive thyroid often feel anxious, nervous, or irritable. 

In women, hyperthyroidism can cause changes in menstrual patterns. 

Other signs of an overactive thyroid include:

  • Brittle hair
  • Thinning skin
  • Swelling of the neck (enlarged thyroid gland)
  • Insomnia
  • Muscle fatigue or weakness

Since these symptoms can mimic other diseases, it is crucial to visit the doctor for a diagnosis. Even if you don’t experience all of the above symptoms, you should schedule an appointment with your physician. 

Alternatively, you can visit a clinic specializing in thyroid conditions. For more information, check out

Diagnosing and Treating an Overactive Thyroid

If your physician thinks you may have hyperthyroidism, they will likely perform several blood tests and imaging scans. These will confirm the diagnosis and reveal the cause of your overactive thyroid, which may be:

  • Graves’ disease
  • Overactive thyroid nodules
  • Thyroiditis
  • Too much iodine
  • Improper dose of thyroid medicine

Once your doctor confirms the cause of your overactive thyroid, he or she will devise a treatment plan. This may include medicine, radioiodine therapy, or thyroid surgery. 

These treatments all have the same goal- to bring your thyroid hormone levels back to normal range and help you become healthy and fit again. This will avert problems in the long run and relieve any symptoms that you are currently experiencing. 

Keep in mind that no particular treatment works for everyone, and the approach will depend on the severity of your condition. 

Seek Treatment for Your Overactive Thyroid

Knowing the symptoms of an overactive thyroid is only the first step. If you suspect that you may be suffering from this condition, it is essential to get the medical care you need. 

While hyperthyroidism can be bothersome without proper treatment, your physician can help you manage it and live a healthy life.

If you found this article helpful, be sure to check out more of our health-related content! 

Steffi Stark

Steffi is a freelance health blogger and is involved in writing fitness and health-related blogs for more than 5 years now. She is a certified health coach and even guides her audience with the healthy foods and recipes. In her writings, she involves news, the latest changes in the health industry, and fitness tips. She even informs her audience about celebrity fitness tips and goals through her writings.


  • Masters from University School of Medicine
  • Certified trainer

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