It depends on the actual situation, if there is fever or severe infection can not be done, if mild infection, cardiopulmonary function is normal can be considered to do. Contraindications to coronary angiography mainly include the following. 1. Iodine allergy or allergy to temporary use of the machine. 2. Those with severe cardiopulmonary insufficiency who cannot tolerate the procedure. 3. Uncontrolled serious arrhythmia, such as solid arrhythmia, rapid atrial fibrillation and supraventricular tachycardia. 4. Uncorrected hypokalemia, digitalis toxicity, electrolyte disorders and acid-base imbalance. 5. Severe hepatic and renal insufficiency. 6. Bleeding disorders, such as bleeding and coagulation disorders. 7. The patient’s physical condition can not accept and tolerate the examination. 8. Fever and severe infectious diseases. Fever and severe lung infections often cause pulmonary insufficiency or spread of inflammation, so it is not appropriate to do this test at this time. For mild lung infections with normal lung function, the test can be considered and will have little effect on the body. If you have a lung infection and need to have a cardiogram, you should consult a professional at the hospital before making a decision.