The imaging examinations can be divided into several areas, and the specific examination time is as follows: 1. tubal ultrasonography: 3-7 days after menstrual cleansing; 2. organ ultrasonography: for example, liver ultrasonography needs to be performed after 8 hours of fasting; 3. cardiac cavity and myocardial imaging: if the patient has no acute lesions, uncontrollable hypertension or acute myocardial infarction, the examination can be performed immediately; 4. vascular ultrasonography: it can be performed immediately; 5. other things such as thyroid and breast ultrasonography can be performed immediately.