The High-Sugar Alert: 12 Symptoms Your Body May Be Showing You
High blood sugar (hyperglycemia) can develop gradually, and some people—especially in the early stages—may have no noticeable symptoms. The following signs can occur when blood glucose is elevated:
- Frequent urination — Especially needing to urinate more often at night.
- Excessive thirst — Feeling unusually thirsty despite drinking fluids.
- Increased hunger — Feeling hungry soon after eating.
- Unexplained weight loss — Losing weight without intentionally changing your diet or activity.
- Persistent tiredness — Feeling unusually weak or exhausted.
- Blurred vision — Temporary changes in vision can occur when glucose levels are high.
- Slow-healing cuts and wounds — High glucose can interfere with normal healing.
- Recurring infections — Such as urinary, skin, or yeast infections.
- Dry or itchy skin — Dehydration associated with high glucose can contribute.
- Tingling or numbness — Particularly in the feet or hands, very high blood sugar accompanied by vomiting, severe abdominal pain, rapid/deep breathing, confusion, extreme sleepiness, or loss of consciousness. These can be signs of a dangerous especially with longstanding diabetes.
- Headaches or difficulty concentrating — Some people notice these when glucose is significantly elevated.
- Nausea or vomiting — Particularly concerning when accompanied by very high glucose.
The important part
These symptoms don’t prove that your blood sugar is high. Many have other possible causes, and some people with diabetes have few symptoms.
The best way to know is through blood glucose testing and/or an HbA1c (A1C) test.
🚨 Seek urgent medical care for very high blood sugar accompanied by vomiting, severe abdominal pain, rapid/deep breathing, confusion, extreme sleepiness, or loss of consciousness. These can be signs of a dangerous metabolic emergency.
