Fetal macrosomia refers to a fetus or newborn larger than expected, usually based on absolute birth weight, although definitions vary. Birth weights of 4,000 g or 4,500 g are commonly used thresholds, but no single definition is universally accepted. Macrosomia differs from large for gestational age (LGA), which describes a baby whose birth weight is at or above a specified percentile for its gestational age. Maternal diabetes, excessive gestational weight gain, obesity, previous macrosomic birth and prolonged pregnancy are among the factors associated with increased fetal growth.
Fetal macrosomia cannot usually be confirmed with certainty before birth because estimates of fetal weight are imprecise. However, timely antenatal assessment can identify factors associated with excessive fetal growth, including diabetes and excessive maternal weight gain, and help the obstetric team plan appropriate monitoring and delivery. Management aims to reduce potential complications such as shoulder dystocia, birth trauma, prolonged labour and postpartum haemorrhage while avoiding unnecessary interventions based only on an uncertain fetal-weight estimate.
Causes
Risk Factors
Cesarean Delivery : Planned cesarean delivery may be considered when the estimated fetal weight reaches very high thresholds or when other maternal or fetal indications are present.
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MediRehab (a chain of Rehab centres, part of MediGence) provides comprehensive rehabilitation services designed to support Fetal Macrosomia patients in India. These Services include:









Bangalore, India
Gleneagles BGS Hospital, Kengeri, is a leading healthcare centre in Bengaluru, committed to delivering compassionate, patient-focused care locally and globally. The hospital houses 15 specialised departments with over 30 medical and surgical specialities, supported by 450 beds, advanced emergency services, imaging, laboratory, and transfusion facilities.
It is renowned for pioneering initiatives such as South India’s first 5G-enabled ambulance and Karnataka’s largest Multi-Organ Transplant Program. Recognised among India’s top paediatric cranio-maxillofacial centres, it is also the first in Karnataka to receive the AHPI Award 2024 for “Excellence in Nursing Practices” consecutively.

Delhi, India
Indraprastha Apollo Hospital is known for delivering treatment to over 200,000 patients every year; 10,000 of which are generally medical tourists. The efficient team of doctors has the record of 99.6 percent success rate. Indraprastha Apollo Hospital deals in treatment of over 50 specialities.
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Noida, India
Fortis Healthcare Limited is one of India’s prominent providers of integrated healthcare services, offering comprehensive medical care across multiple specialities. The company’s operations span hospitals, diagnostic centres, and day-care speciality facilities, ensuring a wide range of healthcare solutions under one umbrella. Fortis has established a strong presence across the country, managing 33 healthcare facilities, which include joint ventures and operational & management (O&M) setups, across 11 states.
The company’s hospital network comprises more than 5,700 operational beds, including O&M beds, catering to patients with varied healthcare needs. In addition to inpatient services, Fortis operates around 400 diagnostic laboratories, providing reliable and timely diagnostic support for accurate medical care. This extensive network enables Fortis to deliver high-quality healthcare services consistently and efficiently, from routine diagnostics to specialised treatments and complex procedures.
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