Egg Freezing — Everything to Know Before You Start

Egg freezing has moved from experimental to mainstream. This page covers the comprehensive picture, who benefits most, what the process involves, realistic success rates, costs, and how to make an informed decision.

1. What egg freezing is

Ovarian stimulation followed by egg retrieval, then rapid freezing (vitrification) of mature oocytes for indefinite storage. Eggs are thawed in future when pregnancy is sought; fertilised with partner or donor sperm; resulting embryos transferred. The technique has matured substantially since vitrification replaced slow freezing around 2010.

2. Who benefits most

Women in their 20s and early 30s planning to delay pregnancy; women with severe endometriosis or planned ovarian surgery; women with reduced ovarian reserve (low AMH); women facing chemotherapy or radiotherapy; women with family history of premature ovarian insufficiency; women without current partner who want future fertility options.

3. Timing, earlier is better

Egg quality is highest in 20s and early 30s. By 35, quality declines; by 38, decline is significant. Eggs frozen at 30 have substantially higher subsequent live birth potential than eggs frozen at 38. The window for high-yield egg freezing is shorter than commonly assumed.

4. The process, week by week

Pre-cycle: hormone tests, ultrasound, AMH. Day 2–3 of cycle: start FSH injections. Days 7–12: monitoring ultrasounds every 2–3 days. Day 12–14: trigger injection. Day 14–16: egg retrieval under sedation. Mature eggs vitrified same day. Total: about 3 weeks per cycle. Most women self-administer injections; daily life continues.

5. How many eggs to bank

Target depends on age. Under 35: 15–20 mature eggs gives about 70% chance of future live birth. 35–37: 20–25 eggs. 38 and over: 25+ eggs. Multiple cycles often needed. Each cycle yields 8–15 mature eggs in good responders, fewer in poor responders.

6. Realistic success rates

Egg survival after thaw: 90%+. Fertilisation rates: similar to fresh. Live birth per egg thawed: 6–10% on average (higher in young women, lower in older). Cumulative live birth from a single freeze cycle of 15–20 eggs at age 32: approximately 70%; at age 38: approximately 40%. Honest individual counselling matters more than averages.

7. Costs and storage

One freezing cycle in India: roughly INR 1.5–3 lakh depending on centre. Storage: roughly INR 20–50,000 annually. Future use: additional cost for thaw, fertilisation, embryo development and transfer. Total lifetime cost: roughly INR 3–5 lakh per child from frozen eggs.

8. Common misconceptions

Egg freezing is not a “fertility insurance policy” with guaranteed outcomes. It is an optionality tool. Many women never use their frozen eggs because they conceive naturally. Some who try with frozen eggs do not succeed. Going in with realistic expectations is essential.

Frequently Asked Questions