Fever after an intervention is a bad thing; an infection may have occurred and anti-infective treatment should be given if necessary. Fever after intervention may be related to catching a cold during the procedure; when entering the procedure, the temperature needs to be kept relatively low due to the operation of the machine, and some patients may catch a cold during the procedure, leading to respiratory infections, which may lead to fever after entering the procedure. Fever after an interventional procedure can also be an infection, and patients can develop a sudden high fever. Fever after interventional surgery should pay attention to find the cause, if necessary, blood culture, clear infection foci, if necessary, give anti-infection treatment; intervention operation process, pay attention to the aseptic operation, to avoid the occurrence of infection. If there is any symptom of physical discomfort, you should go to the hospital in time, and under the guidance of the physician, the cause should be clarified and targeted treatment should be given.