Taking medicine after cardiac stent will not cause the body to lose weight, it may be related to malnutrition of the body and its own diseases. 1. Malnutrition: it may be that the energy intake is greater than the energy consumption after the operation, the rest is not good, the mental state is not stable enough and so on, which leads to the wasting of the body. After the operation, according to the situation, you can supplement vitamins and fibers appropriately, increase proteins, and reasonably match the diet to ensure the nutrient intake, and improve the wasting. 2. own disease: if the patient himself has diabetes, thyroid dysfunction, tumors and other chronic wasting diseases, there will be body wasting after surgery, and taking medicine is not very relevant, should pay attention to the existence of other diseases, go to the hospital for examination, to find out the reasons for treatment. After the cardiac stent body wasting, should promptly consult a doctor, under the formal guidance of the doctor’s treatment.