What level of blood sugar is considered high and can lead to complications?

Patient's question:

Fasting blood glucose 12.19, ten-year history

Doctor's answer:

Hello, according to the situation you mentioned, the occurrence of diabetes complications is not reflected by specific blood sugar values. As long as blood sugar is well-controlled, the risk of complications is low. If it is not controlled for a long time, the risk of complications increases, rather than appearing when blood sugar reaches a certain value. Suggestions: In your case, with a diabetes history of over ten years, your fasting blood sugar is still as high as 12 or more, indicating that it is not well-controlled. It is recommended to switch to insulin to control blood sugar, which can significantly reduce the risk of complications. Doctor's inquiry:

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