Type 2 diabetes mellitus pregnant blood sugar can not be lowered, usually related to over-nutrition, physical activity, etc., need to be based on the cause of the general treatment, drug therapy to control the condition. 1. Excessive nutrition: If a pregnant woman with type 2 diabetes eats high-calorie, high-sugar food for a long time, resulting in excessive nutrition, it will affect the effect of blood sugar control. The treatment should make some improvements in diet, try to be light, easy to digest as the principle, and to control the amount of fat, calories, sugar and other food. 2. Insufficient physical activity: If you have been sitting or lying down for a long time after pregnancy, it is easy to lead to weight gain, thus affecting the effect of blood glucose control. Treatment should be appropriate to increase the amount of activity, it is recommended to walk properly after meals every day, can assist in lowering blood sugar. Pregnant women suffering from type 2 diabetes mellitus control effect is not good, must be under the guidance of a professional physician reasonable medication, so as not to affect the health of the embryo.