Is Serum Cholesterol 6.4 high, normal or dangerous? What does Serum Cholesterol level 6.4 mean?

📅 Medical Review Date: February 26, 2026

Your Serum Cholesterol level of 6.4 is a High Serum Cholesterol level.

High Serum Cholesterol levels may indicate underlying health problems. The normal range is typically between 2.59 mmol/L and 5.15 mmol/L. 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 Serum Cholesterol range for men is :2.59 - 5.15 mmol/L

Ideal values of Serum Cholesterol depending on age (male) :

Age	Ideal Serum Cholesterol value
<5 years	2.756
5-10 years	2.932
10-15 years	3.12
15-20 years	3.32
20-25 years	3.532
25-30 years	3.758
30-35 years	3.999
35-40 years	4.255
40-45 years	4.527
45-50 years	4.817
50-55 years	5.125
55-60 years	5.104
60-70 years	5.083
70-80 years	5.062
80-90 years	5.041
90-100 years	5.021
>100 years	5

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

Get Advice via Email : Send us your blood test report, and our Serum Cholesterol 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 Serum Cholesterol, please include those too—an accurate diagnosis often requires a full view of all abnormalities. Upload blood test report now

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Normal range of Serum Cholesterol found among women :2.59-5.15 mmol/L

Ideal values of Serum Cholesterol depending on age (female) :

Age	Ideal Serum Cholesterol value
<5 years	2.761
5-10 years	2.943
10-15 years	3.137
15-20 years	3.344
20-25 years	3.564
25-30 years	3.799
30-35 years	4.049
35-40 years	4.316
40-45 years	4.601
45-50 years	4.904
50-55 years	4.882
55-60 years	4.861
60-70 years	4.839
70-80 years	4.818
80-90 years	5.136
90-100 years	5.114
>100 years	5.092

If you take a Serum Cholesterol blood test and the results are not in the normal range (2.59-5.15 mmol/L), 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 Serum Cholesterol Test Is Done :

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

Medical References

• Mayo Clinic – Cholesterol test
• MedlinePlus – Cholesterol Levels
• Cleveland Clinic – Cholesterol: Understanding Levels & Numbers