Oocyte (egg) retrieval is a crucial step in the in vitro fertilization (IVF) process, involving the collection of eggs from the woman's ovaries under ultrasound guidance. The procedure, performed 10-12 days after ovarian stimulation, requires anesthesia and takes about an hour, followed by a recovery period of at least 24 hours. Patients should prepare by consulting their doctor, fasting, and wearing comfortable clothing, while being advised to contact their doctor if they experience any concerning symptoms post-procedure.