Is RDW SD 58.1 high, normal or dangerous? What does RDW SD level 58.1 mean?

📅 Medical Review Date: January 18, 2026

Your RDW SD level of 58.1 is a High RDW SD level.

An RDW SD level of 58.1 fL usually means there is significant variation in red blood cell sizes. It suggests an underlying blood disorder. High levels of RDW SD can cause fatigue, pale skin, weakness, shortness of breath, heart palpitations, headache, and cold extremities. This can be caused by thalassemia, iron deficiency, vitamin B12 deficiency, or chronic liver disease. Further tests are often needed to identify the cause and guide appropriate treatment.

High RDW SD levels may indicate underlying health problems. The normal range is typically between 39 fL and 46 fL. 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 high RDW SD levels

✨ Analyze My RDW SD 58.1 Result →

The normal RDW SD range for men is :39 - 46 fL

**Ideal values of RDW SD depending on age (male) :**
Age	Ideal RDW SD value
<5 years	41.266
5-10 years	43.664
10-15 years	43.517
15-20 years	43.37
20-25 years	45.89
25-30 years	45.735
30-35 years	45.58
35-40 years	45.426
40-45 years	45.272
45-50 years	45.119
50-55 years	44.966
55-60 years	44.815
60-70 years	44.664
70-80 years	44.513
80-90 years	44.363
90-100 years	44.213
>100 years	44.064

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

Get Advice via Email : Send us your blood test report, and our RDW SD 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 RDW SD, 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 high RDW SD levels after this video message

A video message on the treatment of your high RDW SD level

If you want your blood test report to be interpreted by RDW SD specialist, you can upload your report. Our RDW SD 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 high RDW SD levels

Some examples of conditions that increase or decrease RDW SD levels include:

Thalassemia, an inherited blood disorder
Crohn's disease
Chronic liver disease
An iron or vitamin deficiency
Heart disease

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

Important - At the end of this article read how our patients treated their high RDW SD levels

Also Read :How our patients treated their high rdw sd?

Normal range of RDW SD found among women :39-46 fL

**Ideal values of RDW SD depending on age (female) :**
Age	Ideal RDW SD value
<5 years	41.334
5-10 years	43.808
10-15 years	43.651
15-20 years	43.494
20-25 years	43.338
25-30 years	45.931
30-35 years	45.767
35-40 years	45.603
40-45 years	45.44
45-50 years	45.277
50-55 years	45.115
55-60 years	44.954
60-70 years	44.793
70-80 years	44.633
80-90 years	44.473
90-100 years	44.313
>100 years	44.154

Also Read :Symptoms of High RDW SD

If you take a RDW SD blood test and the results are not in the normal range (39-46 fL), 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.

Important :How our patients treated their high rdw sd?

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How the RDW SD Test Is Done :

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