Symptoms of High Blood Sugar: 10 Warning Signs You Can't Ignore High blood sugar, also known as hyperglycemia, is a condition where there is an excess...
Symptoms of High Blood Sugar: 10 Warning Signs You Can't Ignore
High blood sugar, also known as hyperglycemia, is a condition where there is an excessive amount of glucose circulating in the blood. This often occurs in people with diabetes, but it can also affect individuals without a diabetes diagnosis. Recognizing the symptoms of high blood sugar is crucial for prompt management and preventing serious health complications. This article will delve into 10 warning signs you absolutely cannot ignore.
Related reading: Hyperglycemia Explained What Happens When Your Blood Sugar Is Too High
Understanding High Blood Sugar (Hyperglycemia)
Before we dive into the specific symptoms, let's briefly understand what causes hyperglycemia. Typically, insulin, a hormone produced by the pancreas, helps glucose from the food we eat enter our cells for energy. When there isn't enough insulin or when the body doesn't use insulin properly (insulin resistance), glucose builds up in the bloodstream, leading to high blood sugar. Factors such as diet, lack of exercise, illness, stress, and certain medications can also contribute to hyperglycemia.
10 Warning Signs of High Blood Sugar
Knowing these symptoms can help you take action quickly. Don't ignore these signs – consult with a healthcare professional if you experience them frequently.
- Frequent Urination (Polyuria): One of the most common early signs of high blood sugar is needing to urinate more often than usual, especially at night. This happens because the kidneys are trying to flush out the excess glucose from your blood through urine.
- Increased Thirst (Polydipsia): Closely linked to frequent urination, increased thirst occurs because your body is losing fluids as it tries to eliminate excess glucose. You might find yourself feeling constantly dehydrated, no matter how much water you drink. Addressing both frequent urination and increased thirst can offer early clues about blood sugar levels.
- Unexplained Weight Loss: Even if you’re eating normally (or even more than usual), you might experience unexplained weight loss. This is because your body isn't able to get energy from glucose, so it starts breaking down muscle and fat for fuel.
- Increased Hunger (Polyphagia): Despite eating, you might feel constantly hungry. This is because glucose isn't entering your cells properly, and your body believes it's not getting enough energy.
- Blurred Vision: High blood sugar can cause the lens of your eye to swell, leading to blurred vision. This can fluctuate depending on your blood sugar levels.
- Fatigue and Weakness: With glucose not efficiently entering your cells, you may experience persistent fatigue and weakness, even after getting enough rest. A lack of usable energy due to persistently elevated blood sugar often results in these feelings of exhaustion.
- Slow-Healing Cuts and Sores: High blood sugar can impair blood circulation and nerve function, making it harder for cuts and sores to heal. Even minor wounds may take weeks or months to close.
- Dry, Itchy Skin: High blood sugar can cause dehydration, which can lead to dry, itchy skin. Additionally, high glucose levels can damage nerves, potentially causing itching sensations.
- Frequent Infections: Hyperglycemia can weaken your immune system, making you more susceptible to infections, especially yeast infections, urinary tract infections (UTIs), and skin infections.
- Numbness or Tingling in Hands and Feet (Neuropathy): Over time, high blood sugar can damage nerves, causing numbness, tingling, or pain in the hands and feet. This condition is known as peripheral neuropathy and can become permanent if left untreated. Recognizing early signs like tingling in extremities can prompt earlier intervention.
Diagnosing High Blood Sugar

If you're experiencing these symptoms, it's crucial to get your blood sugar levels checked. Your doctor may recommend one or more of the following tests:
Related reading: Is My Fasting Blood Sugar Normal A Guide To Healthy Levels
- Fasting Plasma Glucose (FPG) Test: This test measures your blood sugar levels after an overnight fast.
- Oral Glucose Tolerance Test (OGTT): This test measures your blood sugar levels two hours after drinking a sugary drink.
- A1C Test: This test measures your average blood sugar levels over the past two to three months.
Test | What It Measures | Interpretation |
---|---|---|
Fasting Plasma Glucose (FPG) | Blood sugar after fasting | Normal: < 100 mg/dL, Prediabetes: 100-125 mg/dL, Diabetes: ≥ 126 mg/dL |
Oral Glucose Tolerance Test (OGTT) | Blood sugar 2 hours after sugary drink | Normal: < 140 mg/dL, Prediabetes: 140-199 mg/dL, Diabetes: ≥ 200 mg/dL |
A1C Test | Average blood sugar over 2-3 months | Normal: < 5.7%, Prediabetes: 5.7-6.4%, Diabetes: ≥ 6.5% |
Managing High Blood Sugar
Managing high blood sugar typically involves lifestyle changes, medication, or a combination of both. Here are some key strategies:
- Diet: Follow a balanced diet that is low in sugar and refined carbohydrates. Focus on whole grains, fruits, vegetables, and lean protein.
- Exercise: Regular physical activity can help lower blood sugar levels and improve insulin sensitivity.
- Medication: Your doctor may prescribe medications such as insulin, metformin, or other diabetes drugs to help control your blood sugar.
- Monitoring: Regularly monitor your blood sugar levels to track your progress and make necessary adjustments to your treatment plan.
- Hydration: Drink plenty of water to help your kidneys flush out excess glucose.
When to Seek Immediate Medical Attention
Related reading: Hypoglycemia Treatment What To Do When Your Blood Sugar Crashes
While managing high blood sugar is essential, certain situations require immediate medical attention:
- Severe Symptoms: If you experience severe symptoms such as confusion, seizures, loss of consciousness, or difficulty breathing, seek emergency medical care immediately.
- Diabetic Ketoacidosis (DKA): This is a serious complication of diabetes that occurs when your body produces high levels of blood acids called ketones. Symptoms include nausea, vomiting, abdominal pain, and a fruity odor on your breath.
- Hyperosmolar Hyperglycemic State (HHS): This is another serious complication of diabetes that occurs when your blood sugar levels are extremely high and your body becomes severely dehydrated.
Prompt intervention is crucial in these scenarios to prevent life-threatening complications.
Conclusion
Recognizing the symptoms of high blood sugar is paramount for proactive health management. By understanding the warning signs discussed in this article – frequent urination, increased thirst, unexplained weight loss, and others – you can take timely action and prevent long-term health complications. If you suspect you have high blood sugar, consult with a healthcare professional to get a proper diagnosis and personalized treatment plan. Remember that early detection and management of high blood sugar are essential for maintaining optimal health and well-being.