IVF after 40: considerations, testing and treatment options

Compassion and Clinical Candour

Entering a fertility clinic in your forties requires a medical team that combines deep empathy with unwavering scientific honesty. Patients aged 40 and above are frequently subjected to unrealistic marketing claims of "guaranteed success" or unwarranted clinical pessimism.

At Mysuru Fertility Centre, we know pregnancy after 40 is achievable, but it demands an individualized strategy tailored to biological realities.

Biological Realities: The Chromosomal Curve

By age 40:

• The resting primordial follicle pool is naturally reduced, resulting in AMH levels typically between 0.3 and 1.2 ng/mL.
• Approximately 70% to 80% of retrieved eggs carry chromosomal aneuploidies.
• Without genetic screening, early miscarriage rates are statistically higher due to meiotic non-disjunction.

Protocol Design for Patients Over 40

Massive doses of gonadotropins (450–600 IU) rarely produce more healthy eggs and can compromise quality. Modern approaches focus on: 1. Mild or Individualized Stimulation: Combining moderate gonadotropin doses with oral letrozole to recruit available follicles gently. 2. Double Stimulation (DuoStim): Collecting eggs in both the follicular and luteal phases of a single cycle to accumulate blastocysts for genetic screening. 3. Trophectoderm Biopsy (PGT-A): Identifying the euploid embryo among biopsied blastocysts elevates implantation rates to ~50%–55% per transfer.

Exploring Donor Oocyte Pathways

Under India's ART (Regulation) Act of 2021, legal and medical frameworks for donor egg treatments are ethically governed and transparent. If repeated cycles yield no mature oocytes or AMH is severely depleted (< 0.1 ng/mL), donor egg IVF offers pregnancy rates exceeding 55% to 60% per cycle.