Egg retrieval is the procedure of removing eggs. The precautions to be taken on the day before egg retrieval include three major aspects, namely, diet, activity and emotion. 1. Diet: The day before the operation, you should avoid excessive consumption of gas-producing foods such as soybeans and milk, etc. Egg retrieval surgery is usually performed by ultrasound-guided transvaginal puncture to retrieve the eggs, and if anesthesia is required for egg retrieval surgery, you should follow the doctor’s instructions to fast and abstain from food and water after 22:00 p.m. on the evening of the day before the operation. 2. Activity: patients who need to retrieve eggs have usually received super ovulation drugs before the operation to promote the synchronous development of multiple follicles, the day before the operation may appear the phenomenon of ovarian enlargement, it is recommended to avoid heavy physical labor or strenuous exercise, or else it is prone to the risk of ovarian torsion. 3. Emotions: Nervousness and anxiety will easily affect the endocrine balance, the day before the operation should be relaxed, maintain adequate sleep, eliminate the adverse emotional impact on the body. Patients should follow the doctor’s instructions to strictly observe the precautions before the egg extraction surgery, which is conducive to the smooth progress of the surgery.