What should you know about borderline type 2 diabetes?

It is not the same as having type 2 diabetes, but it can signal that the body is becoming less responsive to insulin. A clinician can confirm what your result means and arrange repeat testing or monitoring.

Prediabetes often causes no clear symptoms, so a blood test may identify it during a routine check or an assessment for another concern. Results can be affected by the test used, whether you had eaten, medicines, illness, and timing. One result does not always give the full picture.

The change is related to insulin and glucose handling. The pancreas may still make insulin, while muscle, liver, and fat cells respond less effectively. Over time, glucose can remain in the bloodstream instead of moving into cells for energy. Prediabetes can improve, stay stable, or progress, depending on personal health factors and follow-up.

Prediabetes is the term used for this intermediate state. Read more about [Prediabetes](/conditions/prediabetes/) and discuss your own results rather than relying on a label alone.

Book a follow-up appointment to review the exact test, the date it was taken, and whether another test is appropriate. Bring a list of medicines and supplements, including products that may affect glucose.

Choose practical changes you can maintain: build meals around vegetables, fibre-rich foods, and a suitable protein source; reduce sweet drinks; and add regular movement such as walking if it is safe for you. If weight is a concern, gradual support from a clinician or dietitian can help; obesity can increase the likelihood of insulin resistance. Explore [Obesity](/conditions/obesity/) for related information.

Do not start glucose-lowering medicine or make major dietary changes without advice, especially if you are pregnant, have kidney disease, or take medicines that can lower blood sugar. Ongoing checks help show whether the plan is working.

Arrange prompt medical advice if you develop marked thirst, frequent urination, unusual tiredness, blurred vision, or unexplained weight loss. These symptoms can have several causes, but they warrant a glucose assessment.

Seek urgent help for confusion, fainting, severe weakness, difficulty breathing, repeated vomiting, or inability to keep fluids down. If you already use diabetes medicine, sweating, shaking, fast heartbeat, or sudden confusion may indicate [Hypoglycaemia](/conditions/hypoglycaemia/) and needs immediate attention.

Long-term glucose problems can affect blood vessels, nerves, kidneys, and the immune response. New foot wounds, spreading redness, or a hot and painful area should be assessed promptly; skin infections such as [Cellulitis](/conditions/cellulitis/) can worsen without treatment.

Ask which test showed the result, what range it falls into, and whether illness, fasting status, or a medicine could have influenced it. Ask when you should repeat testing and which symptoms should prompt an earlier review.

You can also ask for a personalised activity and meal plan, whether you need checks for blood pressure or cholesterol, and whether kidney or nerve assessments are appropriate. If you have numbness, pain, or reduced sensation in your feet, ask about [Peripheral Neuropathy](/conditions/peripheral-neuropathy/).