What does a fundal height measuring large for dates indicate?

SFH >3 cm above gestational age may indicate macrosomia (most common), polyhydramnios, multiple gestation, or uterine fibroid. Ultrasound for estimated fetal weight, amniotic fluid index, and anomaly assessment is recommended.

When should fundal height measurement begin?

Fundal height measurement is routinely performed at each antenatal visit starting at 20 weeks. Before 20 weeks, the uterus is below the umbilicus and SFH measurement is less reliable; dating ultrasound is preferred for gestational age assessment.

Fundal Height to Estimated Gestational Age

Estimates gestational age from symphysis-fundal height (SFH): fundal height in centimetres approximately equals weeks of gestation ± 3 cm between 20–36 weeks. SFH <3rd percentile for gestational age or lagging by ≥4 cm suggests fetal growth restriction; SFH >3 cm above dates suggests macrosomia or polyhydramnios.

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Fundal Height to Estimated Gestational Age

Frequently Asked Questions

What does a fundal height measuring large for dates indicate?

When should fundal height measurement begin?