Possible symptoms of an underactive thyroid
The U.S. National Institute of Diabetes and Digestive and Kidney Diseases lists symptoms that can include fatigue, weight gain, increased sensitivity to cold, muscle or joint discomfort, dry skin or thinning hair, menstrual changes, a slower heart rate and depression. Many of these symptoms are common in other conditions too.
Why testing matters
Because symptoms overlap with many other health problems, a clinician may use thyroid blood tests to confirm whether the thyroid is underactive and to understand the likely cause. The exact tests ordered depend on the clinical question, previous results, medicines, pregnancy status and other health conditions.
Before a thyroid test
Bring previous thyroid reports if you have them and tell the clinician about thyroid medicines, supplements and other regular medicines. Do not change or stop prescribed thyroid treatment simply because a new blood test is planned; follow the instructions given by your treating clinician.
Using the lab catalogue
Apollo Clinic Jabalpur lists thyroid testing in its laboratory catalogue and preventive packages. If you have a prescription, send the exact test name to the clinic team so they can confirm the matching test, preparation instructions and booking option.
Sources used for this guide
Reviewed against the linked public-health sources on 2026-08-10. For personal medical advice, consult a qualified clinician.