High blood sugar (hyperglycemia) can develop slowly, and some people have few or no symptoms at first. Common signs that blood sugar may be too high include:
Common symptoms of high blood sugar
- Increased thirst and a dry mouth
- Frequent urination, especially at night
- Increased hunger even after eating
- Unexplained weight loss
- Tiredness or low energy
- Blurred vision
- Slow-healing cuts or wounds
- Frequent infections (such as skin, urinary, or yeast infections)
- Tingling or numbness in the hands or feet
Signs that need urgent medical attention
Seek urgent care if high blood sugar is accompanied by:
- Nausea or vomiting
- Severe weakness or confusion
- Trouble breathing
- Fruity-smelling breath
- Severe dehydration
- Very high glucose readings, especially if they remain high despite usual treatment
What you can do
- If you have a glucose meter, check your blood sugar as directed by your healthcare provider.
- Keep track of symptoms and readings.
- Stay hydrated.
- Follow your prescribed diabetes plan, including medicines and diet recommendations.
If you tell me your blood sugar reading (for example, fasting or after a meal), age, and whether you have diabetes, I can help interpret what it may mean.
