Thyroid Disease

The main purpose of the thyroid gland is to produce hormones that regulate metabolism, heart rate, body temperature, and protein synthesis. The thyroid gland produces two main hormones:

• Thyroxine (T4): The primary hormone that influences metabolism and energy levels.
• Triiodothyronine (T3): A more active hormone that also affects metabolic processes.

Sometimes, the body needs more thyroid hormones, and sometimes it requires less. To produce the right amount of hormones, the thyroid gland relies on the pituitary gland. The pituitary gland, located in the brain, uses a hormone called TSH to control how much hormone the thyroid releases into the bloodstream. An imbalance in the levels of these two hormones (T3 and T4) can lead to various health problems.

Primarily, there are two main types of thyroid disorders: hyperthyroidism (an overactive thyroid) and hypothyroidism (an underactive thyroid), each of which can be caused by various conditions.
Hyperthyroidism
Hyperthyroidism is a condition in which the thyroid gland is overactive. Due to this, it produces too much thyroid hormone. This increases the body’s metabolism and affects various body functions. This condition may lead to many symptoms, including:

• Muscle weakness
• Weight loss without trying
• Sweating
• Diarrhoea
• Nervousness
• Rapid heart rate
• Thinning skin and brittle hair

Hypothyroidism
Hypothyroidism is quite the opposite of hyperthyroidism. This condition occurs when the thyroid gland doesn’t produce enough hormones. It can cause some of the body’s functions to slow down. Hypothyroidism can be caused by Hashimoto’s thyroiditis, thyroid surgery, or damage from radiation treatment. This condition may lead to various symptoms, such as:

• Tiredness
• Increased sensitivity to cold
• Constipation
• Dry skin
• Weight gain
• Puffy face
• Hoarse voice

Other Thyroid Diseases

• Hashimoto’s Thyroiditis: This is an autoimmune disorder that can cause the thyroid gland to become inflamed, leading to goitre (neck swelling) and other symptoms.
• Thyroid Tumours: This condition occurs when a small, noncancerous growth in the thyroid gland, called a nodule or adenoma, develops. It can cause hyperthyroidism. Treatment often involves surgery to remove the overactive nodule.
• Thyroid Cancer: Thyroid cancer is more common in those who have had radiation to the head, neck, or chest, but it can also occur without risk factors. The four main types are papillary, follicular, anaplastic, and medullary. These cases are treatable.

Your doctor can diagnose thyroid disease through physical examination, medical history, and blood tests. If thyroid disease is suspected, your doctor may recommend:
Blood Tests:

• A blood test to measure thyroid-stimulating hormone (TSH).
• Low TSH levels can indicate a thyroid disorder.
• A blood test to measure T4 hormone.

The anti-thyroid microsomal antibody test:

• Measures anti-thyroid peroxidase (anti-TPO) antibodies.
• High levels of antibodies may indicate thyroid damage.

Thyroid Conditions:

• High TSH levels could indicate hypothyroidism (underactive thyroid).
• Low TSH levels could indicate hyperthyroidism.

Hypothyroidism

• An underactive thyroid (hypothyroidism) is usually treated with daily hormone replacement tablets called levothyroxine. They are used to replace low hormone levels.

Hyperthyroidism:
An overactive thyroid (hyperthyroidism) thyroid condition, where medication is used to reduce hormone production. Various medications are recommended by doctors :

• Antithyroid drugs (like methimazole) are used to reduce hormone production.
• Radioactive iodine: Destroys overactive thyroid cells.
• Surgery: Removal of part or all of the thyroid gland.

Thyroid Nodules:
The treatment of thyroid nodules depends on the type of nodule and its symptoms.

• Monitoring: Regular ultrasound exams if nodules are benign.
• Biopsy: Fine needle aspiration for suspicious nodules.
• Surgery: If nodules are large or cancerous.

For Thyroid Cancer:

• Surgery: Removal of the thyroid gland (thyroidectomy) by Thyroid Cancer Doctor .
• Radioactive Iodine Therapy: To destroy remaining cancerous cells.
• Thyroid Hormone Therapy: To suppress TSH and reduce cancer recurrence risk.