There is no such thing as one insulin shot a month. Insulin is a hormone secreted by the pancreas that promotes the utilization of glucose by cells, and can be applied by diabetic patients to help control blood sugar. According to the onset and duration of action of insulin can be divided into rapid-acting insulin, short-acting insulin, intermediate-acting insulin and long-acting insulin, of which long-acting insulin has the longest duration of action, can be used to supplement basal insulin, and can be injected once a day, which can help to control fasting glucose, but there is no such thing as a one-month injection of insulin. Diabetic patients need to control diet, low sugar, low fat diet, appropriate exercise, under the guidance of the doctor in conjunction with their own condition reasonable application of insulin therapy, must not be superstitious prescriptions, so as not to delay the condition.