High blood glucose, also known as diabetes, is a systemic disease that involves multiple systems throughout the body and produces a variety of clinical symptoms. High blood glucose may produce the following uncomfortable feelings: i. Mild hyperglycemia can be without any discomfort and is mostly found during physical examination. Second, elevated blood glucose may have symptoms of thirst, dry mouth and polyuria when it is obvious, and may be accompanied by different degrees of weight loss. Third, patients with high blood sugar may have unexplained weakness. Four, symptoms of blurred vision and vision loss. V. Numbness and pins and needles sensation at the end of extremities. Urinary system infection symptoms of frequent, urgent and painful urination, especially for female hyperglycemic patients. Seven, the appearance of slow wound healing or non-healing.