IVF Egg Retrieval: Understanding the Procedure & Timing

The IVF egg retrieval process requires a trigger shot to mature follicles when they reach 18-22mm in size and optimal estrogen levels. Egg retrieval occurs 36 hours later using ultrasound-guided needle aspiration at accredited centers. Sperm is collected or thawed on the same day for fertilization.

---

Key Takeaways

Trigger Shot Timing for Egg Retrieval: Ensuring Mature Follicles

The trigger shot is administered when follicles reach 18-22mm and estrogen levels indicate sufficient follicular development. This timing ensures eggs mature before ovulation to allow successful retrieval.

Egg Retrieval Procedure: Ultrasound-Guided Needle Aspiration

During retrieval, an ultrasound-guided needle removes follicular fluid and eggs from the ovaries. The procedure takes 20-30 minutes and is performed at accredited ambulatory surgery centers under sedation.

Sperm Collection for IVF: Same-Day vs. Thawed Samples

Sperm is collected fresh on the day of egg retrieval if available. For out-of-state/international patients, previously frozen sperm is thawed and used for fertilization.

Estrogen Levels and IVF Success: Monitoring Follicle Development

Estrogen levels correlate with follicle count and guide medication decisions for the trigger shot. Higher estrogen (from more follicles) requires adjusted dosing to optimize egg maturation.

IVF Egg Retrieval Anesthesia: Sedation vs. General Anesthesia

Egg retrieval uses sedation via IV, not general anesthesia. Patients remain semi-awake with minimal recovery time, allowing same-day discharge after the 20-30 minute procedure.

---

Source: Read full article