Diabetes does not necessarily mean high urine sugar, and conversely, high urine sugar does not necessarily mean diabetes. There is not a one-to-one relationship between the two. So in some cases where high urine sugar occurs, it is important to clarify if there are other non-diabetic related conditions that are positive for urine sugar. Here are some of the common conditions that cause high urine sugar. 1, hyperthyroidism: hyperthyroidism will cause the blood flow in the intestinal wall to accelerate and the absorption of sugar to increase, will appear diabetes due to high blood sugar after meals, need to do thyroid function tests, blood glucose checks, etc. 2. Acromegaly: Acromegaly can cause high secretion of growth hormone and increase blood sugar, which can lead to diabetes. 3, pheochromocytoma: due to adrenaline and norepinephrine secretion, resulting in increased phosphorylase activity, prompting the degradation of liver glycogen into glucose, causing an increase in blood glucose and the occurrence of diabetes, need to cooperate with the ultrasound examination, blood glucose examination. 4, Cushing’s syndrome: this disease due to increased secretion of cortisol, so that glycogen xenobiotic exuberance, it may inhibit hexose phosphokinase and counteract the role of insulin, thus appearing glycosuria, the need to do endocrinological examination.