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Drugs and diseases reference index

Drugs and diseases reference index

Diseases reference index «Small for gestational age (SGA)»

Small for gestational age (SGA) means a fetus or infant is smaller in size than normal for the baby's gender and gestational age.


Ultrasound is used to find out if a fetus is smaller-than-normal for age (intrauterine growth restriction). The most widely used definition of SGA is birth weight below the 10th percentile.

A fetus with intrauterine growth restriction will be small in size and can have problems such as:

  • Increased red blood cells (polycythemia)
  • Low blood sugar (hypoglycemia)
  • Low body temperature (hypothermia)

Alternative Names

Low birth weight

Comment «Small for gestational age (SGA)»