Is Sodium 109 low, normal or dangerous? What does Sodium level 109 mean?

📅 Medical Review Date: January 21, 2026

Your Sodium level of 109 is a Low Sodium level.

A sodium level of 109 mmol/L usually means there is too much water or too little sodium in the body. It suggests hyponatremia. Low levels of sodium can cause nausea, headache, confusion, fatigue, muscle cramps, seizures, and coma in severe cases. This can be caused by heart failure, kidney disease, liver cirrhosis, or certain medications. Further tests are often needed to identify the cause and guide appropriate treatment.

Low Sodium levels may indicate underlying health problems. The normal range is typically between 136 mmol/L and 145 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.

Important - Scroll to the end of this article to see how our patients managed their low Sodium levels

⚠️ LOW VALUE DETECTED

Your Sodium is ⬇️ LOW

Your level: 109 mmol/L (Normal range: 136–145 mmol/L)

109

Sodium mmol/L

⬇️ Below Normal

Your Value 109 mmol/L

Normal Range 136–145 mmol/L

Severity Level MODERATE

Your Sodium level is low. While concerning, this single number doesn't tell the full story. Upload your complete blood test report for a more accurate analysis.

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The normal Sodium range for men is :136 - 145 mmol/L

**Ideal values of Sodium depending on age (male) :**
Age	Ideal Sodium value
<5 years	137.482
5-10 years	138.981
10-15 years	140.496
15-20 years	142.027
20-25 years	143.575
25-30 years	143.558
30-35 years	143.541
35-40 years	143.524
40-45 years	143.507
45-50 years	143.49
50-55 years	143.473
55-60 years	143.456
60-70 years	143.439
70-80 years	143.421
80-90 years	144.984
90-100 years	144.966
>100 years	144.949

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

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

1,51,150

Total number of patients treated

Important - Read more questions about low Sodium levels after this video message

A video message on the treatment of your low Sodium level

If you want your blood test report to be interpreted by Sodium specialist, you can upload your report. Our Sodium expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours.Upload blood test report now

Important - At the end of this article read how our patients treated their low Sodium levels

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

Conditions that lead to too much anti-diuretic hormone (ADH)
Cushing syndrome
Nephrotic syndrome
Diabetes insipidus
Excess fluid buildup in the body (edema) caused by heart failure

Also Read :Sodium 109 mmol/L? Blood Tests You May Need Next

Important - At the end of this article read how our patients treated their low Sodium levels

Normal range of Sodium found among women :136-145 mmol/L

**Ideal values of Sodium depending on age (female) :**
Age	Ideal Sodium value
<5 years	137.527
5-10 years	139.071
10-15 years	140.632
15-20 years	142.211
20-25 years	143.808
25-30 years	143.79
30-35 years	143.772
35-40 years	143.754
40-45 years	143.736
45-50 years	143.718
50-55 years	143.7
55-60 years	143.682
60-70 years	143.664
70-80 years	143.646
80-90 years	143.628
90-100 years	143.61
>100 years	143.592

Also Read :Symptoms of Low Sodium

Can Low or High Sodium cause Heart Problems?

Read on to know how abnormal Sodium affects heart

Know more

If you take a Sodium blood test and the results are not in the normal range (136-145 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.

✨ Analyze Your Sodium 109 mmol/L Result Instantly →

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How the Sodium Test Is Done :

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

Medical References

Symptoms

Medically Reviewed By

Dr. Hernandez, MD

BOARD CERTIFIED PATHOLOGIST

Laboratory Medicine Specialist

View Full Profile & Credentials →

Laboratory Expertise:

Clinical Pathology Certification
15+ years lab analysis experience
Specializes in test interpretation
Medical Advisory Board Member

Medical Disclaimer: This information is for educational purposes and should not replace professional medical advice. Consult your physician for diagnosis and treatment. Read full disclaimer.

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