Frozen Embryo Transfer (FET) at Mother Hospitals, Boduppal uses previously vitrified embryos — no repeat egg retrieval, no stimulation injections. A simple endometrial preparation cycle, then embryo transfer in about 15 minutes. Led by Dr. E. Prashanthi Reddy with 20+ Years' IVF experience. Call 97059 93366 to plan your FET.
Complete guide to Frozen Embryo Transfer at Mother Hospitals & IVF Center, Boduppal — what it is, who benefits, the step-by-step process, natural vs medicated protocols, success rates, and how to prepare. By Dr. E. Prashanthi Reddy, 20+ Years of IVF expertise.
MBBS, DGO, PG Diploma in ART – Kiel University, Germany | 20+ Years IVF & FET Experience | TGMC Reg: 50624
FET uses embryos created during a previous IVF or Needleless IVF cycle, frozen at peak quality, and stored until you are ready to use them.
During IVF or Needleless IVF, eggs are retrieved and fertilised to create embryos. Any embryos not transferred fresh are vitrified (frozen at –196°C) and stored. When you are ready — in the next cycle or years later — these embryos are thawed and transferred into your prepared uterus. This is a Frozen Embryo Transfer.
FET elegantly separates ovarian stimulation from implantation — letting your body fully recover between the two events, creating optimal conditions for the embryo to implant.
Research consistently shows FET implantation rates can equal or exceed fresh transfers — particularly in PCOS patients and high responders, where stimulation medications can create a suboptimal uterine environment at the time of fresh transfer.
The freeze-all strategy (freeze all embryos in cycle 1, transfer in a separate unstimulated cycle) eliminates OHSS risk and allows full endometrial recovery before implantation is attempted.
We use vitrification — an ultra-rapid freezing technique that converts embryos into a glass-like state, preventing ice crystal damage. Vitrification has replaced slow freezing globally. Our blastocyst survival rate on thaw exceeds 95%, meaning almost all frozen embryos survive the thaw in excellent condition and are suitable for transfer.
FET is not just a second option — for many patients it is the preferred first approach.
No ovarian stimulation, no injections, no sedation needed — just endometrial preparation and a simple transfer.
Stimulation medications can temporarily affect the endometrium. FET allows it to fully recover — improving receptivity for implantation.
Ovarian Hyperstimulation Syndrome cannot occur in an FET cycle — there is no stimulation at all. Particularly important for PCOS patients.
If the endometrium isn't perfect on the day of retrieval, embryos can be frozen and transferred when conditions are ideal.
Medicated FET allows the transfer date to be pre-planned, making it easier to manage work and personal commitments.
Embryos frozen from one retrieval can be used years later for a second child — avoiding the need for another full IVF cycle.
A typical medicated FET cycle at Mother Hospitals takes 3–5 weeks from the first day of your period to the transfer day.
Review frozen embryo grading and previous cycle notes. Plan FET protocol — natural vs medicated. Baseline scan to assess ovaries and uterine cavity. Blood tests if needed.
Start oestrogen tablets (Progynova or equivalent) to grow the uterine lining to the right thickness and pattern. Usually 2–4 tablets per day. Monitoring scan at around day 10–12.
Ultrasound confirms endometrial thickness ≥7–8 mm with a trilaminar (triple-line) pattern. If adequate, progesterone is started. If not, the oestrogen dose is adjusted and the scan repeated.
Progesterone pessaries or injections begin to open the implantation window. For a day-5 blastocyst transfer: the embryo is transferred exactly 5 days after starting progesterone.
Your frozen embryo is carefully thawed on the morning of transfer day. Survival and quality are confirmed before proceeding. Transfer takes approximately 15 minutes under ultrasound guidance — no anaesthesia. A fine catheter places the embryo at the optimal uterine position. Rest for 30 minutes, then you go home.
Continue progesterone and oestrogen support exactly as prescribed. Light activity is fine. Avoid heavy exercise, hot baths, and alcohol. Call us immediately for heavy bleeding or severe pain. A beta hCG blood test is done 10–14 days after transfer.
Blood beta hCG confirms pregnancy. Positive → repeat test 48 hours later to confirm doubling → scan at 6–7 weeks to confirm heartbeat and location. If negative → review consultation with Dr. E. Prashanthi Reddy to plan next steps.
Dr. E. Prashanthi Reddy will recommend the best approach based on your cycle regularity and clinical profile.
Best for: Women with regular, predictable cycles (28–32 days).
Ovulation is tracked with LH tests and ultrasound. The embryo is transferred at the natural peak of the implantation window — no hormones beyond vaginal progesterone after transfer. Lower medication burden. Requires more monitoring visits to catch ovulation timing precisely.
Success: Comparable to medicated FET in regular-cycle women. Some research suggests slightly better outcomes in certain patient groups.
Best for: Women with irregular cycles, PCOS, or those needing a scheduled transfer date.
Oestrogen tablets prepare the uterine lining. Once the lining is ready, progesterone is started and the transfer day is pre-planned. More predictable and easier to schedule. Fewer monitoring scans than natural cycle tracking.
Success: Comparable to natural FET overall. More widely used because it offers scheduling flexibility and suits patients with irregular cycles.
If you have had two or more good-quality embryo transfers without success, the ERA (Endometrial Receptivity Array) test can identify your precise personal implantation window. Some women's windows are slightly earlier or later than standard — ERA ensures the embryo is transferred at exactly the right time. Dr. E. Prashanthi Reddy will advise whether ERA is recommended for your case.
Understanding what influences your FET success helps you make informed decisions and set realistic expectations.
FET is the process of thawing and transferring embryos that were previously frozen (vitrified) during an IVF cycle. It avoids repeat egg retrieval and ovarian stimulation — making it a simpler, less invasive procedure than a full fresh IVF cycle.
Yes. Mother Hospitals & IVF Center at Boduppal, Hyderabad offers expert FET under the care of Dr. E. Prashanthi Reddy. Available Monday–Sunday. Call 97059 93366 to book a consultation.
For good-quality blastocysts in women under 38, FET achieves a 40–50% clinical pregnancy rate per transfer. Outcomes are comparable to fresh transfer, and often better for PCOS patients and those where the endometrium needed extra recovery time.
No. FET is generally not painful — similar to a cervical smear test. A thin catheter is guided through the cervix under ultrasound. Most patients experience mild cramping for a few hours. No anaesthesia is required.
Rest for 24 hours after transfer, then light activity is fine. Strict bed rest is not recommended and does not improve success rates. Avoid strenuous exercise, heavy lifting, hot baths, and alcohol during the two-week wait.
Yes — this is in fact a popular strategy. Many Needleless IVF patients choose to freeze all embryos from the first cycle and do FET in the following cycle. This allows full uterine recovery and is highly effective, especially in PCOS patients.
Under the ART Act 2021 (India), embryos can be stored for up to 5 years, extendable by mutual consent. International data from clinics worldwide shows embryos stored for 10+ years produce healthy children with outcomes no different from fresh transfers.
A minimum of 7–8 mm with a trilaminar (triple-line) pattern on ultrasound is required. If the lining doesn't reach this target, the FET may be rescheduled or the protocol adjusted. Dr. E. Prashanthi Reddy closely monitors lining development throughout preparation.
Yes. Decades of data from hundreds of thousands of FET births worldwide confirm that children born from frozen embryo transfers are as healthy as those from fresh transfers. Vitrification does not affect child health outcomes.
In certain groups — particularly PCOS patients, high responders, and cases with suboptimal endometrium at the time of retrieval — freeze-all + FET produces equal or better outcomes. For most patients, fresh and frozen outcomes are comparable. Dr. E. Prashanthi Reddy will advise the best strategy for your individual profile.
Dr. E. Prashanthi Reddy reviews all cycle data at a review consultation. Options include a repeat FET if more frozen embryos remain, ERA test to identify the correct implantation window, immune factor investigation, or a new IVF stimulation cycle to generate fresh embryos.
A blood beta hCG test 10–14 days after transfer gives a definitive answer. Positive → repeat 48 hours later to confirm doubling → scan at 6–7 weeks to confirm heartbeat and intrauterine location.
Whether you have frozen embryos from a previous cycle or are planning a freeze-all strategy, Dr. E. Prashanthi Reddy will guide you through every step. Available Mon–Sun.
Dr. E. Prashanthi Reddy · TGMC Reg: 50624