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Thyroid disease

Thyroid disease: Introduction

Thyroid disorders are common disorders of the thyroid gland. Thyroid disorders include such diseases and conditions as Graves' disease, thyroid nodules, Hashimoto's thyroiditis, trauma to the thyroid, thyroid cancer and birth defects. These include being born with a defective thyroid gland or without a thyroid gland.

The thyroid gland is located in the front part of the neck, and the thyroid hormone it produces is vital to normal metabolism. Thyroid disorders can cause the thyroid gland to become overactive (hyperthyroidism) or underactive (hypothyroidism). Thyroid disorders are most often due to autoimmune thyroid diseases, such as Graves' disease and Hashimoto's thyroiditis.

The most common thyroid disorders that result in hyperthyroidism include thyroid nodules and Graves' disease. These thyroid disorders lead to overstimulation of the thyroid gland and increased production of thyroid hormone. Increased production of thyroid hormone in these thyroid disorder results in a stimulation or quickening of the body's metabolism and symptoms, such as nervousness, anxiety and hypertension.

Thyroid disorders that result in hypothyroidism include Hashimoto's thyroiditis and birth defects of the thyroid gland. These thyroid disorders result in decreased production or a total lack of production of thyroid hormone. These thyroid disorders result in a slowing of the body's chemical processes and metabolism and symptoms, such as weight gain, fatigue and depression.

Thyroid disorders may also lead to serious, potentially life-threatening complications. For more details on symptoms and complications, refer to symptoms of thyroid disorders.

Thyroid disorders are more common in women than in men. Hashimoto's thyroiditis occurs most often in females between the ages of 30 and 50 years and appears to have a genetic component because it can run in families. People over the age of fifty who have hypertension or atherosclerosis are at risk for hyperthyroidism.

Making a diagnosis of thyroid disorders begins with taking a thorough medical history, including symptoms, and completing a physical examination. A physician or health care provider may feel a smaller or larger than normal thyroid gland in the neck upon exam.

A blood test is performed to determine levels of thyroid stimulating hormone (TSH) and the thyroid hormone thyroxine. High levels of TSH and low levels of thyroxine reveal that the thyroid gland is underactive. This may indicate a diagnosis of Hashimoto's thyroiditis or other diseases or conditions that cause hypothyroidism.

Low levels of TSH and high levels of thyroxine reveal that a thyroid gland is overactive. This may indicate a diagnosis of Graves' disease or other disease or conditions that cause hyperthyroidism.

Other tests may be performed to check for potential complications of thyroid disorders, such as heart disease. These can include blood tests that can reveal hypercholesterolemia, increased liver enzymes, or anemia. A chest X-ray may be done to evaluate the size of the heart.

It is possible that a diagnosis of thyroid disorders can be missed or delayed because early symptoms can be mild or assumed to be associated with other conditions, such as excessive caffeine use, angina, aging or stress. For more information on misdiagnosis, refer to misdiagnosis of thyroid disorders.

Treatment of thyroid disorders varies depending on the specific type of thyroid disorder. For more information on treatment, refer to treatment of thyroid disorders....more »

Thyroid disease: Misdiagnosis

A diagnosis of a thyroid disorder may be delayed or missed because some symptoms, such as nervousness, irritability fatigue, weight gain, muscle aches and weakness can be ambiguous and/or mild. These symptoms can be easily attributed to other conditions, such as excessive coffee drinking, aging, stress, excessive exercise, lack of exercise, perimenopause, cold weather or the side ...more misdiagnosis »

Home Diagnostic Testing and Thyroid disease

Home medical tests possibly related to Thyroid disease:

Thyroid disease: Symptom Checker

Listed below are some combinations of symptoms associated with Thyroid disease, as listed in our database. Visit the Symptom Checker, to add and remove symptoms and research your condition.

Symptom Checker

Symptom Checker

Thyroid disease Treatments

There is usually no way to prevent thyroid disorders. However, with recognition and treatment, low levels or high levels of thyroid hormone can be returned to normal levels in the body. Treatments vary depending on the type of thyroid disorder, a patient's age and medical history and individual factors.

Hypothyroidism cannot be cured, and people with the disease have to take ...Thyroid disease Treatments

Review further information on Thyroid disease Treatments.

Drug interactions causing Thyroid disease:

When combined, certain drugs, medications, substances or toxins may react causing Thyroid disease as a symptom. Always advise your doctor of any medications or treatments you are using, including prescription, over-the-counter, supplements, herbal or alternative treatments.

  • Semprex-D and over-the-counter drugs that relieve cold symptoms interaction
  • Trinalin Repetabs and over-the-counter drugs that relieve cold symptoms interaction
  • Brofed Liquid and over-the-counter drugs that relieve cold symptoms interaction
  • Bromfed and over-the-counter drugs that relieve cold symptoms interaction
  • Bromfed-PD and over-the-counter drugs that relieve cold symptoms interaction
  • Bromfenex and over-the-counter drugs that relieve cold symptoms interaction
  • Bromfenex PD and over-the-counter drugs that relieve cold symptoms interaction
  • Dallergy-JR and over-the-counter drugs that relieve cold symptoms interaction
  • more interactions...»

Thyroid disease: Comorbid Symptoms

Some of the comorbid or associated medical symptoms for Thyroid disease may include these symptoms:

Causes of General Symptom Types

Research the causes of these more general types of symptom:

Research the causes of related medical symptoms such as:

Causes of Similar Symptoms to Thyroid disease

Research the causes of these symptoms that are similar to, or related to, the symptom Thyroid disease:

Misdiagnosis and Thyroid disease

Undiagnosed causes of weight gain and obesity: Although obesity may be related to lifestyle issues, there are also a number of medical causes of weight gain or more »

Cluster of diseases with difficult diagnosis issues: There is a well-known list of medical conditions that are all somewhat difficult to diagnose, and all can present in a variety of different severities. Diseases in this group include multiple sclerosis, lupus, more »

Alzheimer's disease over-diagnosed: The well-known disease of Alzheimer's disease is often over-diagnosed. Patients tend to assume that any memory loss or forgetulness symptom might be Alzheimer's, whereas there are many more »

Dementia may be a drug interaction: A common scenario in aged care is for a patient to show mental decline to dementia. Whereas this can, of course, occur due to various medical conditions, more »

Rare type of breast cancer without a lump: There is a less common form of breast cancer called inflammatory breast cancer. Its symptoms can be an inflammation of the breast tissue, such more »

Tremor need not be Parkinson's disease: There is the tendency to believe that any tremor symptom, or shakiness, means Parkinson's disease. The reality is that more »

Rare diseases misdiagnosed as Parkinson's disease: A rare genetic disorder is often misdiagnosed as Parkinson's disease for men in their 50's. The disease Fragile X disorder can show only mild more »

Thyroid disorders greatly under-diagnosed: One study found that about 10% of people had undiagnosed thyroid disorders, mostly hyperthyroidism, but also hypothyroidism. The symptoms of thyroid disorders are often mild, making more »

Misdiagnosed weight-related causes of infertility: A woman's weight status can affect her level of fertility. Although obesity or overweight can in themselves reduce fertility, there are other weight-related or associated more »

Thyroid disease: Research Related Doctors & Specialists

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Hospitals & Clinics: Thyroid disease

Research extensive quality ratings and patient safety measures for hospitals, clinics and medical facilities in health specialties related to Thyroid disease:

Thyroid disease: Related Rare Diseases

Rare types of medical conditions and diseases in related medical categories:

Thyroid disease: Undiagnosed Conditions

Conditions that are commonly undiagnosed in related areas may include:

Detailed list of causes of Thyroid disease

The list below shows some of the causes of Thyroid disease mentioned in various sources:

How Common are these Causes of Thyroid disease?

This information refers to the general prevalence and incidence of these diseases, not to how likely they are to be the actual cause of Thyroid disease. Of the 18 causes of Thyroid disease that we have listed, we have the following prevalence/incidence information:

  • 0 causes are "very common" diseases
  • 2 causes are "common" diseases
  • 0 causes are "uncommon" diseases
  • 0 causes are "rare" diseases
  • 0 causes are "very rare" diseases
  • 17 causes have no prevalence information.

Conditions listing medical symptoms: Thyroid disease:

The following list of conditions have 'Thyroid disease' or similar listed as a symptom in our database. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.

Select from the following alphabetical view of conditions which include a symptom of Thyroid disease or choose View All.

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Conditions listing medical complications: Thyroid disease:

The following list of medical conditions have Thyroid disease or similar listed as a medical complication in our database. The distinction between a symptom and complication is not always clear, and conditions mentioning this symptom as a complication may also be relevant. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.


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Classifications of Thyroid disease:

Medical Conditions associated with Thyroid disease:

Thyroid symptoms (172 causes), Thyroid problems (154 causes), Endocrine symptoms (217 causes)

Symptoms related to Thyroid disease:

Hypothyroidism (106 causes), Hyperthyroidism (41 causes), Goiter (77 causes), Graves disease (10 causes), Myxedema, Cretinism, Autoimmune thyroiditis, Multinodular goiter, De Quervain's thyroiditis, Papillary carcinoma, Medullary carcinoma

Medical articles on signs and symptoms:

Doctor-patient articles related to symptoms and diagnosis:

These general medical articles may be of interest:

Medical News summaries about Thyroid disease

Our news pages contain the following medical news summaries about Thyroid disease and many other medical conditions:

Evidence Based Medicine Research for Thyroid disease

Medical research papers related to Thyroid disease include:

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Related medical articles from our Disease Center for Thyroid disorders:

More Ways To Research Medical Signs and Symptoms:


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