Thyroid TSH Normal Range, High vs Low Levels Explained
Everything about TSH, T3 & T4 normal ranges. Learn the difference between Hypothyroidism and Hyperthyroidism, common symptoms, and when to get tested.
Fast. Safe. Reliable.
3 Crore+ Indians
Collection
24 Hours
Certified
How It Works
Simple ProcessHealthians
SUPER SAVER
PACKAGE
INCLUDES 5 ESSENTIAL TESTS
Most Booked Health Checkups
Free home sample collection and free doctor consultation included with all checkup packages.
Smart Full Body Checkup
74 Diagnostic Parameters Included
Fasting required: 8-10 hours overnight
Senior Citizen Health Profile
85 Comprehensive Parameters Included
Fasting required: 8-10 hours overnight
Diabetes Screening Package
HbA1c + Fasting Sugar + Urine Glucose
Express report delivery within 12 hours
Why Patients Choose Healthians
Over 3,000,000 satisfied patients across 250+ cities in India.
"The phlebotomist arrived in Gurgaon exactly on time at 7 AM. Super hygienic needle procedure and the reports reached my WhatsApp by 5 PM. Excellent and reliable service."
"Booked testing for my parents in Bangalore. No hospital waiting rooms or stress. The doctor called on phone after the report to explain every parameter patiently."
"We have been using Healthians for family regular Diabetes checkups for 3 years now. Their automated lab accuracy and consistent WhatsApp report delivery are unmatched."
About Thyroid Test T3, T4, TSH Normal Levels & When to Test with Healthians
Your thyroid gland acts as your body's master metabolic regulator. The pituitary gland in your brain produces Thyroid Stimulating Hormone (TSH) to tell your thyroid how much hormone to make. Understand how to read your thyroid profile numbers and what abnormal results signify.
- Normal adult TSH range: 0.4 to 4.5 mIU/L (Target under 2.5 during pregnancy)
- High TSH (>4.5): Hypothyroidism (underactive thyroid) causing sluggishness, weight gain, depression, and hair loss
- Low TSH (<0.4): Hyperthyroidism (overactive thyroid) causing tremors, rapid heart rate, weight loss, and anxiety
- Subclinical Hypothyroidism: Elevated TSH with normal T3 and T4 levels
- Best time to test: Morning fasting before taking daily thyroid medication
Frequently Asked Questions
Everything you need to know about our home blood test service.