The way to determine ascites and bloating after egg retrieval is through symptoms and ultrasound. 1. Symptoms: If the ascites after egg retrieval is relatively small, there will simply be the symptom of abdominal distension or no obvious symptoms, in which case no treatment can be needed. If there is more ascites, it will be accompanied by abdominal distension, chest tightness, breath holding, edema and other symptoms. 2. Ultrasound: ascites is a common manifestation of ovarian hyperstimulation syndrome, so if you feel that your abdominal circumference has increased and the symptoms of abdominal distension are more serious, you need to go to the hospital in time to do ultrasound, which can directly clarify the amount of ascites in the abdominal cavity. Determination of ascites and abdominal distension after egg collection, need to hospital ultrasound examination to confirm the diagnosis, by the doctor to develop individualized diagnosis and treatment plan, so as not to delay the condition.