Insulin secretion is normal, high blood sugar may be caused by obesity, growth hormone tumor, Cushing’s syndrome, etc. The specific treatment is as follows: 1. Obesity: the fat factor in the body of obese people may antagonize insulin, thus leading to normal insulin, but high blood sugar, at this time can be alleviated through a light diet, appropriate exercise. 2. Growth hormone tumor: it may lead to excessive secretion of growth hormone in the body, thus antagonizing insulin, at this time, it may need to be treated by surgery or the use of drugs such as bromocriptine and other treatments. 3. Cushing’s syndrome: mainly caused by excessive secretion of glucocorticoid hormone in the body, insulin resistance, at this time can be treated by appropriate exercise, the use of drugs such as ketoconazole, growth inhibitor analogues, etc., and if necessary, surgical treatment can be carried out. If the insulin secretion is normal, but the blood sugar is high, you should consult a doctor for diagnosis and treatment in time.