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What are the factors that cause thyroid abnormalities?

Aug 31, 2024 Source: Cainiu Health
Dr. Yang Chuanjia
Introduction
During pregnancy, hormonal levels in women change, particularly an increase in human chorionic gonadotropin (hCG), which can stimulate the thyroid to some extent, leading to elevated thyroid hormone levels. As pregnancy progresses, the thyroid may gradually fail to meet the increased demand, resulting in hypothyroidism, which may be accompanied by symptoms such as fatigue, weight changes, and mood swings.

Generally, abnormal thyroid function can be caused by various factors, including pregnancy, puberty, medication effects, autoimmune thyroiditis, and toxic diffuse goiter. If abnormalities occur, it is recommended to seek medical attention promptly. A detailed analysis is as follows:

1. Pregnancy

During pregnancy, hormonal levels in women undergo changes, particularly an increase in human chorionic gonadotropin (hCG), which can stimulate the thyroid gland to some extent, leading to elevated thyroid hormone levels. As pregnancy progresses, the thyroid may gradually fail to meet the increased demand, resulting in hypothyroidism, which may be accompanied by symptoms such as fatigue, weight changes, and mood swings. Thyroid function should be regularly monitored during pregnancy. If hypothyroidism is diagnosed, treatment with medications such as levothyroxine sodium tablets under medical guidance is necessary to ensure the health of both mother and fetus.

2. Puberty

During puberty, thyroid-stimulating hormone (TSH) levels may fluctuate, causing unstable secretion of thyroid hormones. Adolescents have increased energy demands, and the thyroid may adjust its function accordingly. Thyroid dysfunction during puberty may present with symptoms such as mood swings and accelerated physical development. In most cases, mild thyroid abnormalities related to puberty do not require specific treatment and can be managed through follow-up observation.

3. Medication Effects

Certain medications, such as lithium salts and amiodarone, may cause abnormal thyroid hormone levels. These drugs may interfere with the synthesis, secretion, or metabolism of thyroid hormones, leading to corresponding symptoms affecting mood and physical performance. Depending on the specific situation, a doctor may recommend adjusting the dosage or switching to alternative medications. Thyroid hormone replacement therapy may also be required when necessary.

4. Autoimmune Thyroiditis

This condition occurs when the immune system mistakenly attacks thyroid tissue. The immune system incorrectly identifies thyroid tissue as a foreign threat, causing inflammation of the thyroid gland and subsequently affecting thyroid hormone secretion. Symptoms may include fatigue, weakness, and fever. It is recommended to follow medical advice for thyroid hormone replacement therapy, such as levothyroxine sodium tablets, to balance thyroid hormone levels. Immunosuppressive agents such as prednisone tablets or eltrombopag olamine tablets may also be needed to control the immune response.

5. Toxic Diffuse Goiter

Toxic diffuse goiter is an autoimmune thyroid disease influenced by genetic, environmental, and other factors. Patients produce antibodies that stimulate the thyroid gland, resulting in excessive secretion of thyroid hormones. Symptoms may include exophthalmos (protruding eyes), palpitations, and excessive sweating. Under medical guidance, antithyroid drugs such as propylthiouracil tablets, methylthiouracil tablets, or carbimazole tablets may be used for treatment.

It is recommended to maintain a healthy lifestyle in daily life, learn to manage emotions, and relax both body and mind through activities such as listening to music and reading to help regulate hormone levels.

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