IVF Success Rate in Shillong — Age-wise Data & What It Means
The average IVF success rate in Shillong is approximately 40% per embryo transfer cycle. Success rates vary significantly by maternal age, ovarian reserve, embryo quality, and the specific clinic's lab infrastructure. This page explains what the numbers actually mean for your situation.
What Does IVF Success Rate Actually Mean?
When a fertility clinic in Shillong advertises an IVF success rate, it is usually reporting the clinical pregnancy rate (CPR) per embryo transfer — the percentage of transfers that result in a confirmed pregnancy (detectable heartbeat on ultrasound). This is not the same as the live birth rate.
The live birth rate per embryo transfer is the metric that truly matters — it accounts for early miscarriages and pregnancy losses and tells you the real probability of taking a baby home. Always ask for this figure, broken down by your age group, when consulting any IVF centre in Shillong.
IVF Success Rate by Age Group in Shillong
Maternal age is the single most important factor determining IVF success. Egg quality and ovarian reserve decline naturally with age, which directly affects fertilisation rates, embryo quality, and implantation likelihood.
| Age Group | Approx. Success Rate / Cycle | Clinical Guidance |
|---|---|---|
| Under 30 | 47% | Optimal egg quality and ovarian reserve; highest live birth rates |
| 30 – 34 | 43% | Very good prognosis; most couples conceive within 1–2 cycles |
| 35 – 37 | 35% | Mild decline begins; early intervention improves cumulative outcomes |
| 38 – 40 | 28% | Noticeable decline; PGT-A embryo testing may be recommended |
| 41 – 42 | 20% | Significantly reduced own-egg success; donor egg IVF may be discussed |
| Over 42 | 10% | Own-egg IVF success is low; donor egg IVF substantially improves outcomes |
* Rates are indicative ranges based on national ART data patterns. Individual results depend on diagnosis, ovarian reserve, and clinic protocol. Always request age-specific data from your clinic in Shillong.
Factors That Affect Your IVF Success Rate in Shillong
Success rates quoted by clinics are population averages. Your individual prognosis depends on several clinical factors your fertility specialist will evaluate:
- Ovarian Reserve (AMH & AFC): Anti-Müllerian Hormone (AMH) level and antral follicle count (AFC) on ultrasound predict how many eggs your ovaries can produce in a stimulated cycle. Low AMH often means fewer eggs retrieved and fewer embryos to choose from.
- Egg Quality: Closely linked to age. Poor egg quality leads to lower fertilisation rates and a higher proportion of chromosomally abnormal embryos — the leading cause of early miscarriage after IVF.
- Sperm Quality: Sperm count, motility, morphology, and DNA fragmentation index all influence fertilisation outcomes. High sperm DNA fragmentation is associated with poor embryo development and higher miscarriage rates, even when basic semen parameters are normal.
- Embryo Quality & Transfer Stage: Blastocyst-stage embryos (Day 5) have higher implantation potential than Day-3 embryos. Clinics in Shillong with advanced embryology labs can better select viable blastocysts for transfer.
- Endometrial Receptivity: A receptive uterine lining (typically 8–12mm, trilaminar pattern) is essential for successful implantation. Conditions like thin endometrium, fibroids, or polyps reduce implantation rates.
- Underlying Conditions: PCOS, endometriosis, hydrosalpinx, and uterine septum all impact IVF outcomes. These should be addressed before or during treatment planning.
- Lab Infrastructure: Clinics in Shillong with time-lapse incubators (EmbryoScope), HEPA-filtered air, and experienced embryologists achieve better blastocyst conversion rates, which directly improves transfer success.
How to Compare IVF Success Rates Between Clinics in Shillong
Clinics report success rates differently. To make a fair comparison, ask these specific questions at every consultation:
- Ask for live birth rate, not pregnancy rate — live birth rate is the only metric that confirms a baby was born.
- Request age-specific data for your age bracket — an overall 50% rate means nothing if the 40+ cohort has a 15% rate.
- Clarify the denominator — is the rate per cycle started, per egg retrieval, or per embryo transfer? Per-transfer rates are highest and may overstate outcomes.
- Ask about blastocyst transfer rates — what percentage of patients reach blastocyst stage? A high blastocyst conversion rate (50%+) indicates a strong embryology lab.
- Check for cherry-picking — some clinics decline complex cases to protect their success rate statistics. A clinic that accepts difficult cases may show lower rates but offer more patient-centred care.
- Compare cancellation rates — what percentage of stimulated cycles are cancelled before egg retrieval (due to poor response or over-response)? This is rarely advertised but tells you a lot about patient selection.
Frequently Asked Questions — Shillong About IVF Success Rate
The average IVF success rate in Shillong is approximately 40% per embryo transfer cycle. This figure represents the clinical pregnancy rate across clinics. Actual outcomes vary by patient age, ovarian reserve (AMH level), sperm quality, embryo quality, and the specific protocol used. Women under 35 typically see rates of 45–47%, while women over 40 may see 20–28%.
A clinical pregnancy rate counts confirmed pregnancies (heartbeat on ultrasound). A live birth rate counts babies born alive. Live birth rate is the more meaningful metric — it is always lower than pregnancy rate because it accounts for early miscarriages and pregnancy loss. When asking a clinic in Shillong about success rates, always ask specifically for live birth rate per embryo transfer, broken down by your age group.
Statistically, approximately 40% of women conceive in the first IVF cycle in Shillong. Cumulative success rates improve significantly over multiple attempts — by the third cycle, cumulative success rates can reach 65–75% for women under 40. Your fertility specialist will assess your individual prognosis (AMH, antral follicle count, sperm parameters) and give a personalised estimate before starting treatment.
Key factors include: maternal age and ovarian reserve (AMH and antral follicle count); sperm quality (count, motility, morphology, DNA fragmentation); embryo quality and stage of transfer (blastocyst vs Day-3); endometrial receptivity; underlying conditions like PCOS, endometriosis, or uterine abnormalities; the embryology lab infrastructure (time-lapse incubators, air quality); and the stimulation protocol used. Clinics in Shillong with advanced lab technology and experienced embryologists tend to report better outcomes.
A failed IVF cycle is not a dead end. Fertility specialists in Shillong typically review the cycle thoroughly — assessing egg quality, fertilisation rate, embryo development, and endometrial response — before modifying the protocol. Many patients who don't conceive in the first cycle succeed in subsequent attempts, often with protocol adjustments. Frozen embryo transfer (FET) cycles also typically have comparable or slightly higher success rates than fresh transfers for suitable candidates.
Yes. Donor egg IVF significantly improves success rates, particularly for women over 40, those with diminished ovarian reserve, or those with poor egg quality in previous cycles. With donor eggs from a young, screened donor, success rates in Shillong can reach 55–65% per transfer — substantially higher than own-egg IVF for the same patient. Your fertility specialist will recommend donor egg IVF only when clinically indicated.
Find the Best IVF Clinic in Shillong for Your Case
Use our directory to compare verified IVF centres in Shillong — review success rates, patient ratings, lab infrastructure, and NABH accreditation to find the clinic that matches your clinical needs and budget.