Is GGT 109 high, normal or dangerous? What does Gamma glutamyl transferase level 109 mean?

📅 Medical Review Date: September 14, 2025

Your GGT level of 109 is a High GGT level.

A GGT level of 109 U/L usually means the liver or bile ducts are affected. It suggests liver damage or alcohol use. High levels of GGT can cause fatigue, jaundice, dark urine, pale stools, itching, nausea, vomiting, and abdominal pain. This can be caused by alcohol-related liver disease, fatty liver, hepatitis, bile duct obstruction, or certain medications. Further tests are often needed to identify the cause and guide appropriate treatment.

High GGT levels may indicate underlying health problems. The normal range is typically between 15 U/L and 85 U/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 GGT range for men is :15 - 85 U/L

Ideal values of GGT depending on age (male) :

Age	Ideal GGT value
<5 years	15.164
5-10 years	15.329
10-15 years	15.496
15-20 years	15.665
20-25 years	15.836
25-30 years	16.009
30-35 years	16.183
35-40 years	16.359
40-45 years	16.537
45-50 years	16.717
50-55 years	16.899
55-60 years	17.083
60-70 years	17.269
70-80 years	17.457
80-90 years	17.647
90-100 years	17.839
>100 years	18.033

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

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Some examples of conditions that increase or decrease GGT levels include:

• Blockage of the bile ducts.
• Cardiovascular disease
• Liver diseases
• Alcohol abuse
• Congestive heart failure

Normal range of GGT found among women :15-85 U/L

Ideal values of GGT depending on age (female) :

Age	Ideal GGT value
<5 years	15.168
5-10 years	15.338
10-15 years	15.51
15-20 years	15.684
20-25 years	15.86
25-30 years	16.038
30-35 years	16.218
35-40 years	16.4
40-45 years	16.584
45-50 years	16.77
50-55 years	16.958
55-60 years	17.148
60-70 years	17.341
70-80 years	17.536
80-90 years	17.733
90-100 years	17.932
>100 years	18.133

If you take a GGT blood test and the results are not in the normal range (15-85 U/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 GGT Test Is Done :

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

Medical References

• MedlinePlus – Gamma-glutamyl Transferase (GGT) Test
• Cleveland Clinic – Gamma-Glutamyl Transferase (GGT) Test: What It Is & Results
• WebMD – Gamma-Glutamyl Transpeptidase (GGT) Test

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