Thyroid Test in Bangalore — Answers for Fatigue, Weight & Mood Changes

Why Thyroid Disorders Are So Common — and So Missed

The thyroid gland regulates how every cell in your body uses energy. When it underperforms (hypothyroidism), everything slows: fatigue, weight gain, cold intolerance, constipation, dry skin, hair fall, low mood, irregular periods. When it overperforms (hyperthyroidism), everything accelerates: palpitations, weight loss, anxiety, heat intolerance, tremor, sleep disturbance. Because these symptoms overlap with ordinary urban life stress, millions of Indians — women especially — carry undiagnosed thyroid disease for years.

A blood test resolves the ambiguity objectively. TSH is the sensitive first signal (rising when the thyroid slows, falling when it races), while Free T3 and Free T4 show actual circulating hormone. Adding Anti-TPO antibodies identifies autoimmune causes that change long-term management.

Who Should Get a Thyroid Test?

Test if you have persistent fatigue, unexplained weight change, hair thinning, menstrual irregularities, infertility concerns, high cholesterol, depression or anxiety with physical symptoms, or a family history of thyroid disease. Women planning pregnancy or already pregnant should test early — untreated maternal hypothyroidism affects fetal development. Annual screening is sensible for women over 35 and for anyone on thyroid medication (typically every 6–8 weeks after dose changes).

Understanding Your Results

Typical patterns your doctor will interpret:

• High TSH + Low FT4 — primary hypothyroidism; medical evaluation and clinical correlation recommended
• High TSH + Normal FT4 — subclinical hypothyroidism; monitoring or treatment depending on levels and symptoms
• Low TSH + High FT4/FT3 — hyperthyroidism; requires prompt medical attention
• Positive Anti-TPO — autoimmune thyroiditis; predicts future thyroid failure risk
• Normal TSH but persistent symptoms — discuss central hypothyroidism and non-thyroid causes with your doctor

Preparation and Timing

No fasting is required, though morning collection is traditional and fine to combine with other fasting tests. If you take levothyroxine, ideally collect your sample before the morning tablet (or 12+ hours after) so TSH reflects steady state — mention your medication when booking. Biotin supplements can interfere with immunoassays; pause them a few days before testing if your doctor agrees.