Hyperthyroidism Signs and Symptoms, Causes, Complications


Definition: – Hyperthyroidism is defined as excessive production of thyroid hormone by the thyroid gland. Thyrotoxicosis refers to clinical syndrome characterized by prolonged exposure to high levels of thyroid hormone. This difference is important when evaluating thyroid function tests.

Epidemiology: –

Hyperthyroidism is a communal disorder. It is estimated that there are 4.7/1000 women with active disease. When pre-treated cases were included, the population in women increased to 20/1000. For hypothyroidism, it is rare in men who are around 2/1000 of their age.

The disorder rarely starts before adolescence and usually occurs between 20 and 50 years of age, but it also occurs in the elderly.

Etiology: –

Hyperthyroidism is a disorder of various etiology. ‘In clinical terms, thyrotoxicosis is the result of persistently elevated levels of thyroid hormone.


∗Tachycardia; Tremor in the atrium

∗Tremors of earthquake


∗Warm, moist skin

∗Muscle weakness, proximal

∗Muscle weakness

∗Lizard Removal or Interval


Symptoms: –

∗Hyperactivity, irritability


∗Heat intolerance and sweating

∗Heartbeat rising

∗Fatigue and weakness

∗Loss with weight gain




∗Oligomenorrhea, loss of libido

Causes: –

Primary hyperthyroidism

∗Grave’s disease

∗Toxic multicellular goiter

∗Toxic adenoma

∗Working thyroid carcinoma metastasis

∗TSH receptor activation mutation

∗Stroma ovary

∗Drugs: excess of iodine

∗Thyrotoxicosis without hyperthyroidism

∗Sub-acute thyroiditis

∗Silent thyroiditis

∗Other causes of thyroid destruction: amiodarone, radiation, adenoma infarction

∗Ingestion of excess thyroid hormone or thyroid tissue.

Secondary hyperthyroidism

∗TSH-secreting pituitary adenoma

∗Thyroid hormone resistance syndrome: can sometimes occur in patients

∗Symptoms of thyrotoxicosis

∗Chorionic gonadotropin-secreting tumor

∗Gestational thyrotoxicosis.

Due to too much thyroxine (T4): –

Generally, your thyroid releases the correct amount of hormone, but sometimes it produces too much T4. This can happen for several reasons, including:

Graves’ disease (use toxic goiter):-

∗The most common form of hyperthyroidism, Grave’s disease is predominantly, be that as it may, not only, in young     ladies.

∗The basis of the disease is an autoimmune disorder in which antibodies (TSHR-Ab) bind and activate TSH                     receptors, resulting in overuse of thyroid hormone.

Graves disease eyes

Image source: Grave’s effected eyes

∗TSHR-Ab is called long-acting thyroid stimulant (LATS) because its duration of action transcends TSH. As TSH is      copied, neither excessive, neither testing for TSH nor attempts to affect it are productive.

∗Antibody is elevated in patients with Titus.

Plummer’s disease (toxic nodular goiter): –

∗This form of thyrotoxicosis is less common than Grave’s disease. Its underlying cause remains unknown, but its           incidence is highest in patients> 50 years of age, and it usually arises from long-lasting no toxic goiter.

∗Thyrotoxicosis results in one or more adenomatous nodules autonomously secreting excessive thyroid hormone,        which suppresses the rest of the gland. Scanning confirms the diagnosis if it indicates that activity and iodine                uptake is limited to the nodular mass, unless TSH is introduced.

Thyroiditis: –

If the thyroid suffers from a viral or rapid autoimmune attack, it will result in follicular cell death as a result of the release of pre-thyroid hormones. It usually presents as painfully enlarged and thyroid.

There is a brief period of hyperthyroidism before thyroid hormone levels decrease. Most often, this period of hyperthyroidism does not clinically cause thyrotoxicosis and is brief in any event, but it is common for these patients to be prescribed thionamide that reduces subsequent hypothyroidism.

Therefore it is necessary to be aware of these conditions. Neck pain specialist with disturbed TFT should be indicated

The evaluation will typically include a request for an iodine overdose scan. Iodine uptake is absent in thyroiditis-associated hyperthyroidism.

Complications: –

Hypothyroidism: can be iatrogenically or, it has been proposed, as a natural sequel to Grave’s disease.

Thyroid storm (thyrotoxic crisis): is a sudden exacerbation of hyperthyroidism caused by rapid release (leakage) of thyroid hormone. It is highly fatal if not treated rapidly. In this crisis, uncontrolled hyper metabolism eventually leads to dehydration, trauma, and death.

Read More-Hyperthyroidism Diagnosis, Treatment and Patient education


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