High blood sugar (hyperglycemia) can develop gradually, especially in people with undiagnosed or poorly controlled diabetes. Common signs include:
Common Symptoms of High Blood Sugar
- Frequent urination (especially at night)
- Increased thirst
- Increased hunger
- Fatigue or weakness
- Blurred vision
- Headaches
- Dry mouth
- Unexplained weight loss
- Slow-healing cuts or wounds
- Frequent infections (skin, urinary tract, yeast infections)
- Tingling or numbness in hands or feet
- Dry or itchy skin
- Darkened skin patches (often around neck or armpits — called acanthosis nigricans)
- Fruity-smelling breath (can signal diabetic ketoacidosis — a medical emergency)
🚨 Seek Immediate Medical Help If You Have:
- Very high blood sugar readings (usually over 300 mg/dL)
- Vomiting
- Confusion
- Difficulty breathing
- Severe abdominal pain
These could indicate diabetic ketoacidosis (DKA), which requires urgent treatment.
If you’re experiencing symptoms, a simple blood glucose test can confirm high levels. Would you like to know normal vs. high blood sugar ranges?