Obesity and unhealthy body weight are increasingly common
and often overlooked causes of infertility in both men and women. Medical
research shows that an abnormal Body Mass Index (BMI) can directly
affect hormone balance, ovulation, sperm quality, and even IVF success rates.
Understanding BMI and Fertility
BMI is a measure of body fat based on height and weight.
- Normal
BMI: 18.5 – 24.9
- Overweight:
25 – 29.9
- Obese:
30 and above
Both high BMI (obesity) and low BMI can
negatively affect reproductive health and fertility outcomes.
How Obesity Affects Female Fertility
Excess body fat disrupts hormonal balance and can lead to:
- Irregular
or absent ovulation
- PCOS-related
fertility problems
- Poor
egg quality
- Reduced
implantation rates
- Higher
risk of miscarriage
Women with obesity may also require higher medication doses
during IVF treatment, which can impact success rates. Doctors at a leading IVF
centre in Delhi carefully evaluate BMI before starting treatment.
Impact of Obesity on Male Fertility
Obesity affects male fertility by:
- Lowering
testosterone levels
- Reducing
sperm count and motility
- Increasing
sperm DNA damage
- Causing
erectile and ejaculation issues
BMI and IVF Success Rates
Studies show that maintaining a healthy BMI improves:
- Response
to ovarian stimulation
- Egg
and embryo quality
- Implantation
and pregnancy rates
- Overall
IVF success
As an experienced IVF centre in Delhi, SCI IVF Hospital
encourages lifestyle optimization before and during IVF cycles.
What Doctors Recommend Before IVF
Fertility specialists at SCI IVF Hospital suggest:
- Gradual
weight loss (5–10% can improve fertility)
- Balanced,
protein-rich diet
- Regular
physical activity (yoga, walking, strength training)
- Managing
conditions like PCOS, diabetes, and thyroid disorders
- Avoiding
crash diets or extreme exercise
Medical supervision is essential while making lifestyle
changes.
Can IVF Still Work If You Are Overweight?
Yes, IVF can still be successful, but optimizing BMI
significantly improves outcomes. At SCI IVF Hospital, treatment plans are
personalized to help patients achieve the best possible results safely and
ethically.
Why Choose SCI IVF Hospital?
- Experienced
fertility specialists
- Advanced
IVF lab & technology
- Comprehensive
lifestyle & medical guidance
- Personalized
and ethical treatment approach
- High
success rates in complex infertility cases
Conclusion
Obesity and unhealthy BMI can silently reduce fertility and IVF success. Addressing weight concerns early can improve natural conception and assisted fertility outcomes. If you are planning pregnancy or IVF, consult SCI IVF Hospital for expert evaluation and guidance.

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