Unexplained weight gain can be linked to an underactive thyroid, insulin resistance or, in women, PCOS. Testing helps separate a treatable cause from lifestyle factors.
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When weight rises without a change in diet or activity, an underactive thyroid and insulin resistance are common, checkable causes. A thyroid test, HbA1c and lipid profile are a sensible base panel.
In women with irregular periods or acne, hormone tests for PCOS are added. Your doctor interprets the results alongside your history.
5 curated lab tests — your doctor decides which you actually need.
A thyroid function test (TSH, T3, T4) checks for an underactive thyroid, a common and treatable cause of weight gain.
Insulin resistance and pre-diabetes can be associated with weight gain, so HbA1c and a lipid profile are commonly included.
HbA1c and lipid profile are best with a morning, fasting sample. The thyroid and hormone tests do not strictly require fasting.
Medical disclaimer
This guide is for general awareness and does not replace medical advice. Symptoms can have many causes; which tests you need depends on your history. Always consult a registered medical practitioner to interpret results and decide on treatment.
