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High Blood Sugar? 10 Symptoms You Shouldn't Ignore (Hyperglycemia Explained)

04 Sep 2025 by Nadine A. Elhage, D.O.

High Blood Sugar? 10 Symptoms You Shouldn't Ignore (Hyperglycemia Explained)

High blood sugar, also known as hyperglycemia, is a condition where there's an excessive amount of glucose circulating in the blood. It’s most commonly associated with diabetes, but it can also occur in people without diabetes due to stress, illness, or certain medications. Recognizing the symptoms of hyperglycemia is crucial for timely intervention and preventing serious health complications. In this article, we’ll delve into 10 symptoms of high blood sugar that you shouldn’t ignore.

Understanding Hyperglycemia

Before diving into the symptoms, let's briefly define what hyperglycemia entails. When we eat, our bodies break down carbohydrates into glucose, which serves as our primary energy source. Insulin, a hormone produced by the pancreas, helps glucose enter our cells for energy. In individuals with diabetes, either the pancreas doesn’t produce enough insulin (Type 1 diabetes) or the body becomes resistant to insulin (Type 2 diabetes). This can lead to a buildup of glucose in the bloodstream, resulting in hyperglycemia. Consistently elevated blood sugar levels can damage organs and tissues over time. The Blood Sugar Diet 10 Foods That Help Stabilize Glucose Levels

10 Key Symptoms of High Blood Sugar (Hyperglycemia)

Here are ten critical symptoms that may indicate you have high blood sugar:

  1. Frequent Urination (Polyuria): When your blood sugar is high, your kidneys work overtime to filter out the excess glucose. This process pulls water from your tissues, leading to increased urination, especially at night.
  2. Excessive Thirst (Polydipsia): Due to the frequent urination, your body becomes dehydrated, triggering intense thirst. This is your body's way of trying to replenish the lost fluids.
  3. Unexplained Weight Loss: If insulin isn’t effectively moving glucose into your cells, your body may start burning fat and muscle for energy, leading to unintended weight loss, even if you're eating normally.
  4. Increased Hunger (Polyphagia): Even with high blood sugar, your cells may not be receiving the glucose they need for energy, leading to a constant feeling of hunger.
  5. Blurred Vision: High blood sugar can cause fluid to be pulled from the lenses of your eyes, leading to swelling and temporary blurring of vision. This can fluctuate as blood sugar levels change.
  6. Slow-Healing Cuts and Sores: Elevated blood sugar can impair blood circulation and nerve function, making it harder for your body to heal wounds. Even minor cuts can take a long time to heal and are prone to infection.
  7. Dry, Itchy Skin: Dehydration caused by frequent urination can lead to dry, itchy skin. Additionally, poor circulation due to high blood sugar can exacerbate skin problems.
  8. Fatigue: When your cells aren't getting enough glucose for energy, you may feel tired and sluggish, even after getting adequate sleep. This fatigue can be persistent and debilitating.
  9. Numbness or Tingling in Hands and Feet (Neuropathy): Over time, high blood sugar can damage nerves, particularly in the hands and feet, leading to numbness, tingling, burning, or pain. This is known as diabetic neuropathy.
  10. Frequent Infections: High blood sugar can weaken your immune system, making you more susceptible to infections, such as urinary tract infections (UTIs), yeast infections, and skin infections.

When to Seek Medical Attention

If you experience one or more of these symptoms, it’s important to consult with a healthcare professional promptly. A simple blood test can determine your blood sugar levels and help diagnose any underlying conditions. Early detection and treatment of high blood sugar can significantly reduce the risk of developing serious health complications. Regular check-ups are also essential, especially if you have a family history of diabetes or other risk factors. The Ultimate Guide To The Oral Glucose Tolerance Test Ogtt

Risk Factors for Hyperglycemia

Several factors can increase your risk of developing high blood sugar:

  • Diabetes: Type 1, Type 2, and gestational diabetes are the most common causes.
  • Family History: Having a family history of diabetes increases your risk.
  • Obesity: Being overweight or obese, particularly with excess abdominal fat, can increase insulin resistance.
  • Sedentary Lifestyle: Lack of physical activity can contribute to insulin resistance.
  • Certain Medications: Some medications, such as corticosteroids and certain diuretics, can raise blood sugar levels.
  • Stress: Physical and emotional stress can cause blood sugar levels to rise.
  • Illness: Infections and illnesses can temporarily increase blood sugar levels.

Managing High Blood Sugar

If you are diagnosed with hyperglycemia, several lifestyle changes and medical interventions can help manage your blood sugar levels:

  • Dietary Changes: Following a healthy diet that is low in carbohydrates and high in fiber can help regulate blood sugar levels. Consult with a registered dietitian for personalized meal planning.
  • Regular Exercise: Physical activity helps improve insulin sensitivity and lowers blood sugar levels. Aim for at least 30 minutes of moderate-intensity exercise most days of the week.
  • Medication: Depending on the severity of your hyperglycemia, your doctor may prescribe oral medications or insulin to help lower your blood sugar levels.
  • Regular Monitoring: Monitoring your blood sugar levels regularly with a glucose meter can help you understand how your body responds to different foods, activities, and medications.

Complications of Untreated Hyperglycemia

Ignoring the symptoms of high blood sugar can lead to serious long-term health problems. It is crucial to recognize the symptoms of hyperglycemia and seek medical treatment early on. Here's a brief overview in a structured table format:

Complication Description
Cardiovascular Disease Increases the risk of heart attack, stroke, and peripheral artery disease.
Nerve Damage (Neuropathy) Can cause numbness, tingling, and pain in the hands and feet, as well as problems with digestion and urinary function.
Kidney Damage (Nephropathy) Can lead to kidney failure, requiring dialysis or kidney transplant.
Eye Damage (Retinopathy) Can cause vision loss and blindness.
Foot Problems Increases the risk of foot ulcers, infections, and amputation.

Conclusion

Being aware of the symptoms of high blood sugar (hyperglycemia) and understanding the risks associated with it is essential for maintaining good health. If you experience any of the mentioned symptoms, seek medical advice promptly. With proper management and lifestyle modifications, individuals with hyperglycemia can lead healthy and fulfilling lives. Early detection and appropriate treatment are the cornerstones of effective diabetes management. Don't ignore the warning signs – your health depends on it. High Blood Sugar Symptoms 7 Warning Signs You Can T Ignore

References and Further Reading