糖尿病在病情失去控制时有口渴、多饮、多尿、多食及作重减轻等症状。实验室检查可发现高血糖及糖尿。有些病人则可因有糖尿病视网膜病变等特殊的微血管病变而初次得到诊断。若无明显的症状和体征,则需在标准状态下进行口服葡萄糖耐量试验(简称 OGTT)。 Diabetes in the loss of control of thirst, polydipsia, polyuria, eat more and re-reduce the symptoms. Laboratory tests can be found in high blood sugar and diabetes. Some patients may be diagnosed for the first time because of special microangiopathy such as diabetic retinopathy. Oral glucose tolerance test (referred to as OGTT) under standard conditions should be performed without obvious signs and symptoms.