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Signs of High Blood Sugar and When to Call a Doctor
The signs of high blood sugar include frequent urination, increased thirst and hunger, blurry vision, fatigue and slow-healing sores. Only a blood test confirms it, so call a clinician if you notice these signs. Sugar Defender is a supplement, not a test or a treatment, and should never delay that call.
Written by the Sugar Defender label deskUpdated · 4 min read
The signs01
What are the signs of high blood sugar?
The CDC lists these common symptoms of diabetes, which is high blood sugar over time (CDC, Symptoms of Diabetes).
- Frequent urination and increased thirst
- Increased hunger and unintended weight loss
- Fatigue and blurry vision
- Frequent infections
- Slow-healing sores, and numbness or tingling in hands or feet, in type 2
Hyperglycemia symptoms can be mild or missing at first. That is why a symptom list never replaces a test.
Next step02
When should you call a doctor about high blood sugar?
Call a clinician when you notice several of these signs, or when they last for days.
Say what you have noticed and ask for a blood test. Do not guess from a symptom list, and do not wait on a supplement to settle it.
If you already take a diabetes medicine, keep taking it and report high readings to your care team. Never stop or change a dose on your own.
The numbers03
What blood sugar numbers count as high?
NIDDK puts diabetes at an A1C of 6.5% or more, or fasting glucose of 126 mg/dL or more, confirmed with a repeat test (NIDDK, Diabetes & Prediabetes Tests).
| Range | A1C | Fasting glucose |
|---|---|---|
| Normal | Below 5.7% | Below 100 mg/dL |
| Prediabetes | 5.7-6.4% | 100-125 mg/dL |
| Diabetes | 6.5% or more | 126 mg/dL or more |
Type your own number below to see its range.
- Within normalA1C below 5.7%Fasting below 100 mg/dL
- PrediabetesA1C 5.7-6.4%Fasting 100-125 mg/dL
- Diabetes rangeA1C 6.5% or higherFasting 126 mg/dL or higher
Type an A1C or a fasting number to see its range. A single test is not a diagnosis; a doctor confirms with a repeat test.
Ranges from NIDDK (NIDDK, Diabetes & Prediabetes Tests). About 115.2 million U.S. adults have prediabetes, many without knowing it (CDC, National Diabetes Statistics Report). A home meter does not give a diagnosis.
Sugar Defender: from $49 a bottle60 mL · 2, 3 or 6 bottles · free US shipping on 3 or 6 · 60-day money-back guarantee
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When to test blood sugar if you have no symptoms?
Ask your clinician. Insulin resistance and prediabetes usually cause no symptoms, so a blood test is the only way to see them (NIDDK, Insulin Resistance & Prediabetes).
In the U.S., an estimated 115.2 million adults have prediabetes (CDC, National Diabetes Statistics Report). Many do not know it.
See the blood sugar numbers guide for how the tests differ.
The drops05
Is high blood sugar something Sugar Defender can fix?
No. It is a dietary supplement, and no study has tested the drops on blood sugar.
Chromium is its only printed amount, 0.7 mcg per mL. Order links below go to the official page, with a 60-day money-back guarantee on official orders.
Sugar Defender: from $49 a bottle60 mL · 2, 3 or 6 bottles · free US shipping on 3 or 6 · 60-day money-back guarantee
See packsFAQ06
Sugar Defender questions people ask
Can high blood sugar cause no symptoms at all?
Yes. Prediabetes and insulin resistance usually cause none, and type 2 symptoms can build slowly (NIDDK, Insulin Resistance & Prediabetes) (CDC, Symptoms of Diabetes). A blood test is the only way to know.
Is blurry vision always a sign of diabetes?
No. Blurry vision has many causes. The CDC lists it as one common symptom of high blood sugar (CDC, Symptoms of Diabetes), so see a clinician and an eye professional.
Which test shows high blood sugar over months?
The A1C test. It reflects average glucose over roughly two to three months, and 6.5% or higher points to diabetes once a repeat test confirms it (NIDDK, Diabetes & Prediabetes Tests).
Who wrote this07
Written and reviewed by
Pages built from the label, the sales page and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by Isugardefender, a Sugar Defender U.S. shop, not by the manufacturer or the distributor. We earn money when you buy through our order links.
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