Is LDH 263 high, normal or dangerous? What does Lactate dehydrogenase level 263 mean?

📅 Medical Review Date: November 19, 2025

Your LDH level of 263 is a High LDH level.

High LDH levels may indicate underlying health problems. The normal range is typically between 100 U/L and 190 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 LDH range for men is :100 - 190 U/L

Ideal values of LDH depending on age (male) :

Age	Ideal LDH value
<5 years	102.63
5-10 years	105.329
10-15 years	108.099
15-20 years	110.942
20-25 years	113.86
25-30 years	116.855
30-35 years	119.928
35-40 years	123.082
40-45 years	126.319
45-50 years	129.641
50-55 years	133.051
55-60 years	136.55
60-70 years	140.141
70-80 years	143.827
80-90 years	147.61
90-100 years	151.492
>100 years	155.476

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

Misdiagnosis is more common than people think—and the consequences can be serious. Delayed treatment, unnecessary medication, or worse. If you want a second opinion on your blood work, one option is to upload it to a site like wholebodyprotocol.com, where world-class doctors review your results. They charge a small fee—around $90 (though you'll want to check the latest price as it fluctuates)—and email you a detailed report. With over 12 million people affected by misdiagnosis every year, that little bit of extra peace of mind can go a long way.

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

• Acute kidney disease
• Acute liver disease
• Sepsis
• Infections such as infectious mononucleosis
• Pancreatitis

Normal range of LDH found among women :100-190 U/L

Ideal values of LDH depending on age (female) :

Age	Ideal LDH value
<5 years	102.709
5-10 years	105.491
10-15 years	108.349
15-20 years	111.284
20-25 years	114.299
25-30 years	117.395
30-35 years	120.575
35-40 years	123.841
40-45 years	127.196
45-50 years	130.642
50-55 years	134.181
55-60 years	137.816
60-70 years	141.549
70-80 years	145.383
80-90 years	149.321
90-100 years	153.366
>100 years	157.521

If you take a LDH blood test and the results are not in the normal range (100-190 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 LDH Test Is Done :

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

Medical References

• MedlinePlus – Lactate Dehydrogenase (LDH) Test
• Cleveland Clinic – LDH (Lactate Dehydrogenase) Test: What It Is & Results
• MedlinePlus – LDH isoenzyme blood test