Is TSH 3 8.21 high, normal or dangerous? What does Thyroid stimulating hormone level 8.21 mean?

📅 Medical Review Date: November 9, 2025

Your TSH 3 level of 8.21 is a High TSH 3 level.

High TSH 3 levels may indicate underlying health problems. The normal range is typically between 0.55 uIU/mL and 4.78 uIU/mL. If your levels are outside this range, it's important to speak with a healthcare provider. Consulting a doctor is recommended to determine the cause and appropriate next steps.

The normal TSH 3 range for men is :0.55 - 4.78 uIU/mL

Ideal values of TSH 3 depending on age (male) :

Age	Ideal TSH 3 value
<5 years	0.595
5-10 years	0.644
10-15 years	0.697
15-20 years	0.754
20-25 years	0.816
25-30 years	0.883
30-35 years	0.955
35-40 years	1.033
40-45 years	1.118
45-50 years	1.21
50-55 years	1.309
55-60 years	1.416
60-70 years	1.532
70-80 years	1.658
80-90 years	1.794
90-100 years	1.941
>100 years	2.1

*Ideal values are calculated based on our database of patient records

Get Advice via Email : Send us your blood test report, and our TSH 3 experts will review it. You'll receive a detailed analysis and personalized treatment guidance via email within 12 hours. If you have additional blood test results besides TSH 3, please include those too—an accurate diagnosis often requires a full view of all abnormalities. Upload blood test report now

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Some examples of conditions that increase or decrease TSH 3 levels include:

• Liver disease
• Autoimmune disease
• A non-functioning thyroid gland
• Thyroiditis
• Diabetes

Receive world-class medical opinion about your high TSH 3 levels over email.Upload blood test report now

Normal range of TSH 3 found among women :0.55-4.78 uIU/mL

Ideal values of TSH 3 depending on age (female) :

Age	Ideal TSH 3 value
<5 years	0.597
5-10 years	0.647
10-15 years	0.702
15-20 years	0.761
20-25 years	0.825
25-30 years	0.895
30-35 years	0.971
35-40 years	1.053
40-45 years	1.142
45-50 years	1.239
50-55 years	1.344
55-60 years	1.458
60-70 years	1.581
70-80 years	1.715
80-90 years	1.86
90-100 years	2.017
>100 years	2.188

If you take a TSH 3 blood test and the results are not in the normal range (0.55-4.78 uIU/mL), your physician may recommend more tests to figure out the problem. You might also get this test if your physician thinks you have some other disease.

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How the TSH 3 Test Is Done :

When your doctor orders a TSH 3 test, it involves a straightforward blood draw to measure your TSH 3 levels. A pathologist or lab technician will take a small sample of blood from a vein using a needle. Your TSH 3 test results are usually available within a few hours.

Medical References

• MedlinePlus – TSH (Thyroid-stimulating hormone) Test
• Cleveland Clinic – TSH (Thyroid-Stimulating Hormone) Levels: Symptoms
• Mayo Clinic – Hypothyroidism (underactive thyroid) - Diagnosis and treatment
• NIH – Thyroid Tests
• NIH – How to interpret thyroid function tests