The length of the interventional procedure review time varies from person to person according to different diseases, as follows: 1, malignant tumors: review 3-4 weeks after the intervention, because the metabolism cycle of chemotherapy drugs in the body is about 3 weeks, after the review, if there is no serious effect, the next operation can be carried out; 2, benign diseases: because of benign diseases do not have much impact on the body itself and the harm, and the need for a longer period of time to observe the treatment effect, such as uterine fibroids or hemorrhagic disease embolization treatment, the time for review can be relatively prolonged, and can be carried out in 3-6 months after the review.