The monthly cost of insulin shots is related to the type and dose of insulin applied by the patient. Currently, the price of insulin ranges from 10-200 dollars, so the monthly cost of insulin for patients ranges from tens of dollars to hundreds of dollars. The cost is higher when the patient applies a high dose of insulin and the price of the applied insulin is high, and lower when the dose of applied insulin is small and cheap. In addition, the specific cost is also related to the number of times the patient injects insulin every day, mainly because some consumables need to be consumed, such as needles for insulin injection and test strips for monitoring blood glucose. How much does it cost to inject insulin for a month is determined by the specific condition of the patient, the type and dose of insulin applied by the patient, and the diabetic patients should standardize the use of insulin therapy under the guidance of the doctor.