If you experience any of the following signs, you should consider getting a thyroid function test:
Thyroid diseases are quite common, including conditions like hyperthyroidism, hypothyroidism, thyroid nodules, and thyroid cancer. Hyperthyroidism is more prevalent in women between the ages of 20 and 40. Therefore, individuals with the following factors should consider undergoing examinations:
You can start by performing a simple self-examination to check for any abnormalities in your thyroid:
Based on these self-examination methods, you can determine the presence of any nodules, their size and shape, and whether there are any enlarged lymph nodes. The World Health Organization classifies thyroid enlargement into 4 levels:
|Not visible or palpable enlargement
|Grade 1A: Enlargement palpable but not visible
|Grade 1B: Visible and palpable enlargement with neck widening
|Visible thyroid enlargement within the normal range for the neck
|Clearly visible thyroid enlargement from a distance
However, self-examination may not always be accurate. If you notice any abnormal swelling of the thyroid gland, it is important to carefully monitor changes in the lump and seek medical attention early for further evaluation and professional medical examination.
There are 3 common methods for thyroid examination, suitable for different individuals:
A small amount of blood is drawn from the patient’s arm for preliminary examination.
To detect thyroid hormone and antibody markers, including thyroid-stimulating hormone (TSH), thyroxine (T4), free thyroxine (FT4), triiodothyronine (T3), free triiodothyronine (FT3), anti-thyroglobulin antibodies (TgAb), and thyroid peroxidase antibodies (TPOAb).
Individuals diagnosed with hyperthyroidism or hypothyroidism, or those with abnormal thyroid function.
Uses ultrasound imaging to examine the thyroid gland.
To check for thyroid tumors, thyroid inflammation, neck masses, calcifications, and to assess the presence of enlarged lymph nodes in the neck.
Individuals working under prolonged high-stress conditions or with abnormal thyroid function.
Uses ultrasound for localization and a fine needle to extract cell samples from the nodule.
To distinguish between benign and malignant tumors, determine the nature of the tumor, and provide further diagnosis and treatment options.
Individuals with thyroid nodules or those at high risk due to a family history of thyroid disorders.
|Hong Kong Sanatorium & Hospital
|From HK$ 450
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|Gleneagles Hospital Hong Kong
|From HK$ 740
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|Hong Kong Adventist Hospital
|From HK$ 540
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|Matilda International Hospital
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|Blood Test (T4)
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|The Hong Kong Thyroid Centre
|From HK$ 750
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|From HK$ 3,960
Thyroid-related diseases fall under the field of endocrinology and metabolism. Therefore, you should consult an endocrinologist for thyroid examinations.
Thyroid-stimulating hormone (TSH) is a hormone that regulates thyroid function. Generally, the TSH level is inversely related to the level of thyroxine (T4) secretion, helping to balance abnormal T4 thyroid hormone production.
The normal range for TSH is typically between 0.5 and 5.0 mU/L, while the normal range for T4 is between 0.8 and 1.8 ng/dL. In general screening, it is recommended to measure the TSH level first. If it is high, further testing of TSH and T4 levels can be done to determine the condition.