What symptom is commonly associated with hyperglycemia?

Frequent urination is a key symptom commonly associated with hyperglycemia, which is a condition characterized by elevated levels of glucose in the blood. When blood sugar levels are excessively high, the kidneys work to eliminate the excess glucose through urine, leading to an increase in the frequency of urination, a condition known as polyuria. As glucose is excreted, it carries water with it, resulting in dehydration, which can further exacerbate the issue. This symptom is often one of the earliest and most noticeable indications of hyperglycemia, alerting individuals to seek medical attention or adjust their insulin regimen if necessary.

Other symptoms can occur alongside hyperglycemia, but frequent urination is particularly distinctive due to its direct physiological link to the kidneys' response to high blood sugar levels.