Thyroid Disorders: A Growing Concern Among Women in Thane

Over the past decade, thyroid disorders have emerged as one of the most commonly diagnosed conditions among women visiting Lord's Polyclinic on Ghodbunder Road. Research suggests that 1 in every 8 women will develop a thyroid disorder during her lifetime — and in urban areas like Thane, the numbers appear to be rising steadily.

As an Internal Medicine physician, I see women in their 20s, 30s, and 40s who come in for unrelated complaints — constant tiredness, unexpected weight gain, thinning hair — and walk out with a diagnosis of hypothyroidism. The thyroid is a small butterfly-shaped gland in your neck, but its impact on your entire body is enormous.

What Is the Thyroid Gland and Why Does It Matter?

The thyroid gland produces two key hormones — T3 (triiodothyronine) and T4 (thyroxine) — that regulate your body's metabolism, heart rate, temperature, mood, and much more. When the thyroid produces too little hormone, you have hypothyroidism. When it produces too much, you have hyperthyroidism. Both conditions require medical attention.

Symptoms of Hypothyroidism (Underactive Thyroid)

Hypothyroidism is far more common among Thane women than hyperthyroidism. Watch for these symptoms:

• Persistent fatigue — feeling exhausted even after a full night's sleep
• Unexplained weight gain — putting on 3–5 kg with no change in diet or lifestyle
• Hair thinning and hair loss — especially at the temples and crown
• Feeling cold all the time — even in Thane's warm and humid climate
• Dry skin and brittle nails
• Constipation
• Brain fog and poor concentration
• Low mood or mild depression
• Irregular or heavy menstrual periods
• Puffiness around the face and eyes

Symptoms of Hyperthyroidism (Overactive Thyroid)

Hyperthyroidism produces opposite symptoms — the body's engine runs too fast:

• Rapid or irregular heartbeat (palpitations)
• Unexplained weight loss despite eating normally
• Excessive sweating and heat intolerance
• Trembling hands
• Anxiety, nervousness, and irritability
• Frequent bowel movements
• Difficulty sleeping

Why Are Thane Women at Higher Risk?

Several factors specific to life in Thane and the Mumbai Metropolitan Region contribute to thyroid problems:

• Iodine intake variability: Despite iodised salt being widely available, dietary patterns in many households can lead to inconsistent iodine intake, which directly affects thyroid function.
• Air quality: The Ghodbunder Road corridor, despite its growth, sees significant vehicular and construction pollution. Certain environmental pollutants — including perchlorate compounds — can interfere with thyroid hormone production.
• Sedentary lifestyle: With many residents working long hours in Thane's IT parks and commercial complexes, sedentary work combined with minimal physical activity worsens metabolic dysfunction.
• Stress: The pressure of long commutes to Mumbai and demanding work schedules elevates cortisol levels, which suppresses thyroid function over time.
• Family history: Thyroid disorders have a strong genetic component — if your mother or sister has hypothyroidism, your risk is significantly higher.

The TSH Test: Your Starting Point

The most important test for evaluating thyroid function is the TSH (Thyroid Stimulating Hormone) blood test. TSH is produced by the pituitary gland and tells your thyroid how much hormone to make.

• Normal TSH: 0.4 – 4.0 mIU/L (labs may vary slightly)
• High TSH → suggests hypothyroidism (the pituitary is signalling harder because the thyroid isn't producing enough)
• Low TSH → suggests hyperthyroidism (the thyroid is overproducing on its own)

If TSH is abnormal, I will typically check Free T3, Free T4, and thyroid antibodies (Anti-TPO) to understand the complete picture. This panel is available at most diagnostic labs in Thane, including those on Ghodbunder Road and Pokhran Road, usually costing between ₹400–₹800 for the full panel.

Treating Hypothyroidism with Levothyroxine

The standard treatment for hypothyroidism is a once-daily tablet called levothyroxine (brand names: Thyronorm, Eltroxin). This synthetic T4 hormone replaces what your thyroid isn't making. Key points about taking it correctly:

• Take it on an empty stomach, 30–60 minutes before breakfast
• Do not take it with milk, tea, or calcium supplements — these block absorption
• The dose is personalised — starting doses are low and adjusted based on TSH levels every 6–8 weeks
• Most patients need lifelong treatment, but the medication is safe, well-tolerated, and inexpensive

Thyroid Health During Pregnancy

This is critically important for women in Thane planning to conceive or who are already pregnant. Untreated hypothyroidism during pregnancy can lead to miscarriage, preterm delivery, and developmental issues in the baby. I strongly recommend all women get a TSH test in the first trimester — or ideally, before conception.