Blood glucose 7.22 mmol / L serious or not can not be directly determined, need to clarify that the blood glucose value is fasting blood glucose, 2 hours after meals blood glucose or random blood glucose, to clarify that the blood glucose value is a normal person or diabetic patients. If it is a normal person fasting blood sugar, belong to the serious range. If it is fasting, the normal range value of blood glucose between 3.9~6.1mmol/L, when the body blood glucose more than the normal value is more serious, if it is two hours after meal blood glucose, the normal value of blood glucose is less than 7.8mmol/L, blood glucose 7.22mmol/L belongs to within the normal range, so it is not serious. If it is random blood glucose, the normal value of blood glucose is required to be less than 11.1mmol/L, blood glucose 7.22mmol/L belongs to within the normal range. For diabetic patients, the requirement is to keep the 2-hour postprandial blood glucose within 10 mmol/L, and the blood glucose 7.22 mmol/L is within the control range. When the blood sugar appears to be elevated must pay attention to, timely medical treatment, to avoid causing other complications.