Hypothyroidism Specialist In Singapore

Hypothyroidism arises when the thyroid gland fails to produce enough thyroid hormones to support the body’s metabolic demands. This disruption affects vital functions, including energy production, heart rate, and body temperature regulation. Insufficient hormone levels slow down metabolic processes, impacting multiple organ systems and causing a range of physical and mental symptoms.

Dr Donovan Tay

Senior Consultant Endocrinologist

Dr Ben Ng

Senior Consultant Endocrinologist

Symptoms of Hypothyroidism

Hypothyroidism symptoms in Singapore can vary widely and often develop gradually over months or years as thyroid hormone levels decline. Common symptoms include:

Fatigue

Persistent tiredness that does not improve with rest, accompanied by a significant reduction in energy levels throughout the day.
Weight Changes

A slowed metabolism may cause weight gain, even without significant changes in diet or eating habits.
Cold Sensitivity

Individuals often feel unusually cold, particularly in their hands and feet, even in otherwise comfortable environments.
Skin and Hair Changes

The skin becomes dry, rough, and flaky, while the hair becomes brittle and prone to thinning, including loss of eyebrow hair.
Cognitive Changes

Many people experience difficulty concentrating, memory lapses, and what is commonly referred to as “brain fog”.
Muscle Weakness

Reduced thyroid activity affects muscle function, causing weakness, stiffness, and aches, particularly in larger muscle groups like the thighs and shoulders.
Depression

Hormonal imbalances can alter brain chemistry, leading to feelings of sadness, low mood, or depression.
Menstrual Changes

Women may experience heavier, more prolonged, or irregular menstrual cycles due to disrupted hormonal regulation.

Causes and Risk Factors

Hypothyroidism can result from various factors that disrupt the production or function of thyroid hormones. These include:

Autoimmune Disease

Hashimoto’s thyroiditis, the most common cause, occurs when the immune system attacks thyroid tissue, gradually impairing hormone production.
Previous Thyroid Treatment

Radiation therapy or surgical removal of the thyroid gland can reduce or eliminate its ability to produce hormones.
Medications

Certain drugs, such as lithium (used in psychiatric disorders) and amiodarone (used to treat heart rhythm problems), can interfere with thyroid hormone production.
Iodine Imbalance

Both insufficient and excessive iodine intake can disrupt the thyroid gland’s function, affecting hormone synthesis.
Radiation Exposure

Radiation from medical treatments, such as for head and neck cancers, or environmental exposure can damage thyroid tissue.
Pregnancy

The increased demand for thyroid hormones during pregnancy may uncover pre-existing thyroid dysfunction or contribute to the development of postpartum thyroiditis.
Genetic Factors

A family history of thyroid disorders can increase the likelihood of developing hypothyroidism, indicating a genetic predisposition.

Types of Hypothyroidism

Recognising the various forms of hypothyroidism is necessary for selecting the most suitable treatment and predicting outcomes effectively.

Primary Hypothyroidism

This type results from direct dysfunction of the thyroid gland, which is unable to produce sufficient hormone levels even when stimulated by the pituitary gland. It accounts for over 95% of cases and is often caused by autoimmune diseases such as Hashimoto’s thyroiditis, surgical removal of the thyroid, or radiation therapy. The condition progresses gradually, allowing for timely diagnosis and treatment initiation.

Secondary Hypothyroidism

Secondary hypothyroidism occurs when the pituitary gland fails to produce adequate thyroid-stimulating hormone (TSH), which is necessary to activate the thyroid gland. Despite the thyroid being structurally normal, insufficient TSH signals reduce hormone production. This form is commonly associated with other pituitary hormone deficiencies and requires a comprehensive approach to managing multiple endocrine systems.

Subclinical Hypothyroidism

Subclinical hypothyroidism is characterised by slightly elevated TSH levels while thyroid hormone levels remain within the normal range. Symptoms may be mild or absent, and regular monitoring is necessary to assess the risk of progression to overt hypothyroidism, which occurs in approximately 2–5% of cases annually.

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Diagnostic Methods

Blood Tests

Thyroid function tests measure thyroid-stimulating hormone (TSH) and free thyroxine (T4). Elevated TSH with low T4 confirms primary hypothyroidism. These tests require minimal preparation, typically focusing on medication timing, with results available in a few days.

Antibody Testing

Thyroid peroxidase (TPO) antibody tests detect autoimmune causes like Hashimoto’s thyroiditis. The presence of TPO antibodies confirms an autoimmune origin and signals a higher likelihood of related autoimmune conditions, particularly in patients with a family history.

Imaging Studies

Thyroid ultrasound evaluates the gland’s size, texture, and structure, identifying abnormalities such as nodules or inflammation. This non-invasive test helps distinguish autoimmune thyroiditis from other structural issues, guiding further diagnosis and treatment.

Treatment Options

The goal of hypothyroidism treatment is to restore normal thyroid hormone levels, addressing both the underlying cause and associated symptoms.

Hormone Replacement

Levothyroxine, a synthetic thyroid hormone, is taken as a daily tablet to replace deficient hormones. Dosages are carefully adjusted based on regular blood tests and symptom monitoring. Most individuals require lifelong treatment to maintain stable hormone levels.

Lifestyle Modifications

Regular exercise and balanced nutrition help support the management of hypothyroidism. Physical activity can reduce fatigue and assist in maintaining a healthy weight, while proper nutrition provides the body with essential resources for optimal metabolism.

Supplement Management

In cases of specific deficiencies, supplements such as vitamin D or iron may be necessary. These supplements should be timed separately from thyroid medication to avoid interference with absorption.

Prevention and Management

Effective long-term management of hypothyroidism involves consistent medication use and regular medical monitoring. Taking thyroid hormone replacement at the same time each day, separate from other medications and supplements, ensures optimal absorption. Routine blood tests help maintain stable hormone levels, while healthy lifestyle habits further support thyroid function. Avoiding abrupt changes in iodine intake and being mindful of potential medication interactions also contribute to maintaining hormonal balance.

Frequently Asked Questions

Can hypothyroidism resolve on its own?

Most cases of hypothyroidism require ongoing treatment. Temporary thyroiditis may resolve naturally, but permanent conditions like Hashimoto’s disease necessitate continuous management with thyroid hormone replacement.

How often should thyroid levels be checked?

Blood tests are typically performed every 6–8 weeks during the initial treatment phase until hormone levels stabilise. Once stabilised, testing is usually done every 6–12 months, with more frequent monitoring if symptoms change or during pregnancy.

What happens if hypothyroidism remains untreated?

If left untreated, hypothyroidism can lead to complications such as heart problems, mental health issues, peripheral neuropathy, and, in severe cases, myxedema – a rare but life-threatening condition requiring immediate medical attention.

Dr Ben Ng

Senior Consultant Endocrinologist

As a senior consultant endocrinologist with over 20 years of clinical experience, Dr Ben Ng provides comprehensive care for patients managing various endocrine conditions. His expertise includes the diagnosis and treatment of diabetes, thyroid disorders, obesity, and a range of other metabolic and endocrine conditions.

Dr Ben Ng Jen Min graduated from the Queens University of Belfast Northern Ireland, United Kingdom (UK).
He completed his postgraduate training with the certificate of completion of training (CCT) from the Royal College of Physicians (UK) with dual accreditation in diabetes and endocrinology and in general internal medicine.
In 2010, he was awarded an MD with honours by the University of Hull, UK, in recognition for his research in diabetes mellitus

Dr Donovan Tay

Senior Consultant Endocrinologist

As a senior consultant endocrinologist with over 20 years of clinical experience, Dr. Donovan Tay provides comprehensive care for patients managing various endocrine conditions. His expertise includes the diagnosis and treatment of diabetes, thyroid disorders, osteoporosis, and a range of other metabolic and endocrine conditions.

Dr. Donovan Tay graduated from the National University of Singapore (NUS) and obtained his membership in the Royal College of Physicians (UK), Master of Medicine (NUS), and Master of Clinical Investigation (NUS).
After completing training in endocrinology, he was conferred as a Fellow of the Academy of Medicine, Singapore (FAMS).
He further specialised in endocrinology with a fellowship at the prestigious Columbia University Medical Centre in New York City.

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Payment Scheme, Health Insurance

We accept a wide selection of both local and international healthcare insurance to help you cover your medical treatment and follow-up care expenses. Rest assured, you can focus on your health & well-being with peace of mind. Kindly speak to our friendly clinic staff if you require any assistance for your healthcare insurance.