PLAIN-LANGUAGE GUIDE

Understanding Your Thyroid Report

A thyroid report checks how well your thyroid gland is working. The main value most doctors look at first is TSH. This page explains TSH, T3 and T4 in simple words.

Englishहिंदीગુજરાતી

TSH — the main marker

TSH (Thyroid Stimulating Hormone) is the most sensitive value on the report. A typical range is roughly 0.4–4.0 mIU/L. Your lab prints its own range next to your result, and that is the one that applies to you.

What high or low TSH can mean

A high TSH is often linked with an underactive thyroid pattern (hypothyroidism), and a low TSH with an overactive pattern (hyperthyroidism). Thyroid changes are very common in India, especially in women. A doctor will confirm what your value means.

T3 and T4

T3 and T4 are the hormones the thyroid actually makes. Some reports list Free T3 and Free T4. Doctors read these together with TSH to get the full picture — you do not need to interpret them alone.

Questions you could ask your doctor

  • Is my TSH in a healthy range for me?
  • Do my T3 and T4 need any attention?
  • Should this test be repeated, and when?
ANSWERS, CALMLY

Frequently asked questions

A typical TSH range is roughly 0.4–4.0 mIU/L, but your lab's printed range and your doctor's reading are what apply to you.
A high TSH is often linked with an underactive thyroid pattern. It is a reason to speak with a doctor, who will interpret it with your T3, T4 and symptoms.
A low TSH is often linked with an overactive thyroid pattern. This page gives the general meaning; your doctor interprets your specific result.
Thyroid changes are common in India, especially in women, so TSH is a routine check. Your doctor decides how often you need it.

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Understand other reports

This page is for general understanding only. It is not medical advice, diagnosis, or treatment. Please consult your doctor about your specific report.