1 type diabetes refers to the absolute lack of insulin secreted by islet cells. That is to say, the function of islet is very poor, and it secretes little or no insulin, which further accumulates blood sugar in human body and causes a series of diseases, which is 1 type diabetes.
Type 2 diabetes is a relative shortage of insulin, which means that islet cells can function well and secrete some insulin. Sometimes it may be that we eat too much, or it may be that the function of islets is slowly deteriorating. After the relative deficiency, just like the machine works for a long time, the function is defective, resulting in insufficient insulin secretion, blood sugar can not be effectively degraded, and blood sugar is further increased. It's called type 2 diabetes.
Therefore, clinically speaking, people with 1 type diabetes usually have a younger onset age and a higher blood sugar, all above 20 mmol. The effect of general hypoglycemic drugs is very poor, and insulin treatment is basically needed, while type 2 diabetes is relatively old, and it is generally middle-aged and elderly. This condition is generally obesity. If you lose weight, your blood sugar may be normal, or you may increase your exercise. If your blood sugar drops, you don't need medication, or if not, you can reduce it to a good level through medication. Patients with severe type 2 diabetes also need insulin therapy.