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Thyroid cyst
How to treat thyroid cysts?
Thyroid cysts refer to fluid-filled sacs found in the thyroid, generally round in shape and varying in size, with no significant clinical symptoms. They can appear as a single nodule or multiple nodules. Typically, when thyroid cysts are detected, high-resolution thyroid ultrasonography can be used to observe their ultrasonographic appearance. Thyroid cysts are generally considered benign thyroid nodules and usually do not require treatment. Regular follow-up with thyroid ultrasound is sufficient. If the thyroid cyst is too large and causes compressive symptoms, such as difficulty in breathing or swallowing, hoarseness, etc., surgical removal can be considered.
Differences between Thyroid Cysts and Nodules
Thyroid cysts and thyroid nodules are different. Generally, thyroid nodules are classified into solid nodules, mixed nodules, and cystic nodules. Most thyroid cysts refer to cystic nodules of the thyroid, meaning that the nodules primarily contain fluid components. Usually, these thyroid cysts are nonfunctional. That is, they contain some fluid, which could be exudate or bloody fluid, but these fluids generally do not cause hormonal level changes. Nodules, on the other hand, often involve functional changes; they can be nodules that produce thyroid hormones or could be cancerous nodules. Therefore, in these respects, thyroid cysts and nodules are different.
Does thyroid cyst affect pregnancy?
Thyroid cysts generally do not affect pregnancy because they are merely morphological changes, meaning enlarged cystic nodules found in the thyroid. These nodules are typically fluid-filled and often non-functional, so they do not significantly impact pregnancy. However, since the thyroid can develop such cystic nodules or cysts, there might also be some functional manifestations. In other words, there could be both cysts and other thyroid function issues concurrently, which might affect pregnancy. Therefore, when thyroid issues are detected, it is necessary to undergo thyroid function tests before planning a pregnancy to determine whether it is safe to conceive and if there will be any impact on pregnancy.
Foods to avoid with thyroid cysts
For patients with thyroid cysts, it is necessary to first understand the patient's thyroid function, whether it is normal, overactive, or underactive. For patients with thyroid cysts who also have hyperthyroidism, a diet avoiding iodine is still necessary, as excessive iodine intake can significantly affect their hyperthyroid condition, therefore they need to consume iodine-free food. However, for patients with normal thyroid function or those with hypothyroidism, a normal diet is appropriate, and there is no need to avoid iodine. It is also recommended that they avoid smoking and alcohol in their daily life.
Do thyroid cysts require medication?
Patients with thyroid cysts who have normal thyroid function do not need oral medication treatment; they only need regular monitoring of thyroid function and thyroid ultrasound. However, patients with thyroid cysts accompanied by hyperthyroidism need to be treated for hyperthyroidism, either with oral medication, iodine-131, or surgery. When thyroid cysts are accompanied by hypothyroidism, oral hormone replacement treatment is also required to bring the thyroid function back to normal levels. Therefore, whether patients with thyroid cysts need medication depends on the results of their thyroid function tests.
Symptoms of thyroid cysts
Regarding the symptoms of thyroid cysts, typically, patients with thyroid cysts do not experience any discomfort in the early stages. Often, a neck mass is incidentally discovered during a physical examination, and usually, there are no systemic clinical symptoms. Some patients may experience slight pain. Of course, if the cyst is large or there is bleeding within the cyst, it may lead to symptoms of compression, such as pain, difficulty swallowing, difficulty breathing, or hoarseness. Additionally, some thyroid cysts can affect thyroid function. For instance, if there is hyperthyroidism, symptoms may include heat intolerance, excessive sweating, and weight loss. Conversely, in long-term cases, patients may experience symptoms of hypothyroidism, such as cold intolerance, fatigue, constipation, and poor appetite.
What should I do about a thyroid cyst?
What should I do if I have a thyroid cyst? First, we need to understand what a thyroid cyst is. A thyroid cyst refers to a fluid-filled sac found in the thyroid gland. Generally, patients with thyroid cysts do not show any clinical symptoms in the early stages. Some discover a lump accidentally, usually without systemic symptoms. Individual patients may exhibit symptoms such as hyperthyroidism, and some with a longer disease course can also experience hypothyroidism, such as fatigue, poor appetite, constipation, and edema. Therefore, when diagnosed with a thyroid cyst, it is crucial to determine whether the cyst is benign or malignant and whether it affects thyroid function. If it does impact function, symptomatic treatment is necessary. Of course, most thyroid cysts are benign and can be monitored over time.
Do thyroid cysts need treatment?
Thyroid cysts generally do not require special treatment, as most thyroid cysts are quite small, and even larger ones usually do not cause significant clinical symptoms. However, treatment may be necessary in some cases, such as when a thyroid cyst becomes large enough to cause compressive symptoms, leading to difficulty breathing or swallowing, in which case puncture or surgery might be considered. On the other hand, if a thyroid cyst is accompanied by abnormalities in thyroid function, it is important to assess whether there is hyperthyroidism or hypothyroidism and treat according to the specific functional state. Additionally, in a small number of cases where a thyroid cyst may have a tendency to worsen, a puncture biopsy is needed to make a diagnosis, and if confirmed, surgery and appropriate treatment should be carried out.
What causes thyroid cysts?
Thyroid cysts currently have no definitive cause identified. Previously, most believed they were possibly related to iodine deficiency, as such deficiency leads to thyroid hyperplasia and an increase in thyroid cysts. However, it was later discovered that in some high-iodine coastal areas, the incidence of thyroid cysts remains high. This suggests that variations in iodine levels, such as switches from low to high iodine or from high to low iodine, can also lead to the occurrence of thyroid cysts. Additionally, it is currently believed that there might be some connection with radiation and the use of mobile phones and computers, but there is no definitive conclusion. Regardless, once thyroid cysts occur, it is important on one hand to eliminate the possibility of malignant features, ruling out thyroid cancer, and on the other hand to ensure thorough thyroid function tests to understand if there are any abnormalities in function and whether treatment is needed.
Are thyroid cysts contagious?
Thyroid cysts are not contagious. They are fluid-filled sacs within the thyroid gland, usually presenting as a single nodule, although in some cases multiple nodules can occur. Typically, thyroid cysts are asymptomatic unless the cyst becomes large or bleeds internally. In such cases, symptoms such as pain, difficulty swallowing, breathing difficulties, and a hoarse voice may occur. Thyroid cysts are considered a local endemic disease primarily caused by iodine deficiency, leading to thyroid hyperplasia and enlargement. Thyroid cysts represent a degenerative change. Therefore, thyroid cysts are not contagious.