Disease Education Hub
Thyroid Health Hub
Understand how your thyroid affects your whole body — the symptoms, the difference between an underactive and overactive thyroid, and the tests that keep it in check.
What is the Thyroid?
The thyroid is a small, butterfly-shaped gland located at the front of your neck. Despite its size, it plays a powerful role in your health — producing hormones that regulate your metabolism, energy levels, heart rate, body temperature and weight.
When the thyroid produces too little hormone (hypothyroidism) or too much (hyperthyroidism), it disrupts these processes and affects the entire body. Thyroid disorders are extremely common, especially in women, and are easily detected with a simple blood test — making awareness and timely testing very valuable.
Hypothyroidism vs Hyperthyroidism
| Feature | Hypothyroidism | Hyperthyroidism |
|---|---|---|
| Hormone Level | Too little thyroid hormone | Too much thyroid hormone |
| Weight | Weight gain | Weight loss |
| Energy | Fatigue, sluggishness | Restlessness, anxiety |
| Heart Rate | Slow heart rate | Fast or irregular heartbeat |
| Temperature | Feeling cold | Feeling hot, sweating |
| Other Signs | Dry skin, hair fall, constipation | Tremors, loose stools, bulging eyes |
Symptoms in Women
- ✓Irregular or heavy periods
- ✓Difficulty conceiving
- ✓Hair thinning and dry skin
- ✓Unexplained weight changes
- ✓Fatigue and mood changes
Symptoms in Men
- ✓Low energy and fatigue
- ✓Unexplained weight gain or loss
- ✓Reduced libido
- ✓Muscle weakness
- ✓Mood changes and poor concentration
Thyroid, Weight & Pregnancy
An underactive thyroid slows your metabolism and is a common, often-overlooked cause of unexplained weight gain, fatigue and constipation. Treating the underlying thyroid problem frequently helps with weight management when diet and exercise alone aren't working.
Thyroid health is especially critical during pregnancy. Thyroid hormones are essential for the baby's brain and nervous system development, and untreated thyroid problems can affect both mother and baby. A thyroid profile is strongly recommended early in pregnancy and for women planning to conceive.
Recommended Thyroid Tests
When to Get Tested
- ✓You have unexplained weight gain or loss
- ✓Persistent fatigue, low mood or anxiety
- ✓Hair fall, dry skin or feeling unusually cold or hot
- ✓Irregular periods or difficulty conceiving
- ✓A family history of thyroid disease
- ✓You are pregnant or planning pregnancy
- ✓You have a visible swelling or lump in the neck
How Focus Diagnostics Can Help
Focus Diagnostics offers the complete range of thyroid tests — TSH, T3, T4, Free T3, Free T4, Anti-TPO antibodies and thyroid ultrasound — across its Hyderabad centres. With free home sample collection and quick, reliable reporting, checking and monitoring your thyroid health is simple and convenient.
Check Your Thyroid Health
A simple thyroid profile can explain unexplained fatigue, weight changes and more. Book your test at Focus Diagnostics.
Frequently Asked Questions
What is the thyroid gland and what does it do?▼
The thyroid is a small butterfly-shaped gland in the neck that produces hormones (T3 and T4) controlling your metabolism, energy, heart rate, temperature and weight. When it produces too little or too much hormone, it affects the entire body.
What is the difference between hypothyroidism and hyperthyroidism?▼
Hypothyroidism is an underactive thyroid that produces too little hormone, causing weight gain, fatigue and feeling cold. Hyperthyroidism is an overactive thyroid producing too much hormone, causing weight loss, anxiety and a fast heartbeat.
Which test is best for checking thyroid function?▼
TSH (Thyroid Stimulating Hormone) is the primary screening test. It is usually done together with T3 and T4 (a thyroid profile), and Anti-TPO antibodies may be added to detect autoimmune thyroid disease.
What is a normal TSH level?▼
A normal TSH level is generally between 0.4 and 4.0 mIU/L. A high TSH suggests an underactive thyroid (hypothyroidism), while a low TSH suggests an overactive thyroid (hyperthyroidism). Your doctor interprets this with your symptoms.
Why are women more prone to thyroid disorders?▼
Hormonal fluctuations during menstruation, pregnancy and menopause make women several times more likely than men to develop thyroid disorders. Symptoms like irregular periods, hair fall and fatigue should prompt a thyroid test.
Can thyroid problems cause weight gain?▼
Yes. An underactive thyroid (hypothyroidism) slows metabolism and commonly causes weight gain, fatigue and constipation. A simple thyroid profile can confirm whether your thyroid is contributing to weight changes.
Why is thyroid testing important during pregnancy?▼
Thyroid hormones are essential for the baby's brain development. Untreated thyroid problems in pregnancy can affect both mother and baby, so a thyroid profile (especially TSH) is recommended early in pregnancy.
Do I need to fast for a thyroid test?▼
Fasting is generally not required for a thyroid test, though it is often done in the morning for consistency. If you take thyroid medication, take it after the blood draw, and avoid biotin supplements for 48 hours as they can affect results.
What is Anti-TPO and why is it tested?▼
Anti-TPO is an antibody that, when elevated, indicates an autoimmune thyroid condition such as Hashimoto's thyroiditis. It helps identify the cause of thyroid dysfunction and guides long-term management.
Where can I get a thyroid test in Hyderabad?▼
Focus Diagnostics offers complete thyroid testing — TSH, T3, T4, Free T3, Free T4, Anti-TPO and thyroid ultrasound — across its Hyderabad centres with free home sample collection. Call 91213 77123 to book.
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