Is Serum HDL cholesterol 0.9 low, normal or dangerous? What does Serum HDL cholesterol level 0.9 mean?

📅 Medical Review Date: March 9, 2026

Your Serum HDL cholesterol level of 0.9 is a Low Serum HDL cholesterol level.

Low Serum HDL cholesterol levels may indicate underlying health problems. The normal range is typically between 1 mmol/L and 1.5 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 HDL cholesterol range for men is :1 - 1.5 mmol/L

Ideal values of Serum HDL cholesterol depending on age (male) :

Age	Ideal Serum HDL cholesterol value
<5 years	1.009
5-10 years	1.018
10-15 years	1.027
15-20 years	1.036
20-25 years	1.045
25-30 years	1.054
30-35 years	1.063
35-40 years	1.073
40-45 years	1.083
45-50 years	1.093
50-55 years	1.103
55-60 years	1.113
60-70 years	1.123
70-80 years	1.133
80-90 years	1.143
90-100 years	1.153
>100 years	1.163

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

Get Advice via Email : Send us your blood test report, and our Serum HDL 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 HDL 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 HDL cholesterol found among women :1-1.5 mmol/L

Ideal values of Serum HDL cholesterol depending on age (female) :

Age	Ideal Serum HDL cholesterol value
<5 years	1.009
5-10 years	1.018
10-15 years	1.027
15-20 years	1.037
20-25 years	1.047
25-30 years	1.057
30-35 years	1.067
35-40 years	1.077
40-45 years	1.087
45-50 years	1.097
50-55 years	1.107
55-60 years	1.117
60-70 years	1.127
70-80 years	1.137
80-90 years	1.148
90-100 years	1.159
>100 years	1.17

If you take a Serum HDL cholesterol blood test and the results are not in the normal range (1-1.5 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 HDL cholesterol Test Is Done :

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

Medical References

• MedlinePlus – HDL test
• Cleveland Clinic – HDL: Why It is Good Cholesterol
• Mayo Clinic – Cholesterol test