Large for Gestational Age (LGA)
Large for gestational age (LGA) is a term used to describe babies who are born weighing more than the 90th percentile for their gestational age. This means that they are larger than would be expected for how far along the pregnancy is.
Causes of LGA
There are several factors that can contribute to a baby being large for gestational age, including:
- Genetics: If either parent is tall or has a history of having large babies, their child may be more likely to be LGA.
- Mother's weight and health: Women who are overweight or obese during pregnancy are more likely to have an LGA baby. Additionally, women with certain medical conditions such as gestational diabetes or polycystic ovary syndrome (PCOS) may also be at increased risk.
- Multiple pregnancy: Carrying twins or other multiples can increase the likelihood of having an LGA baby.
Risks Associated with LGA
Babies who are large for gestational age may face certain health risks, including:
- Difficulty during delivery: LGA babies may be more likely to experience complications during birth, such as shoulder dystocia or cesarean section.
- Low blood sugar: After birth, LGA babies may be at risk for low blood sugar (hypoglycemia) due to their high insulin levels in the womb.
- Respiratory problems: LGA babies may experience respiratory difficulties, such as respiratory distress syndrome or transient tachypnea of the newborn.
Diagnosis and Management
LGA is typically diagnosed during pregnancy through ultrasound measurements. If a baby is suspected to be LGA, their healthcare provider may:
- Monitor fetal growth: Regular ultrasounds will be used to track the baby's growth and development.
- Plan for delivery: The healthcare provider may discuss the possibility of a cesarean section or other delivery options with the mother.
- Develop a birth plan: A birth plan will be created to ensure that the mother and baby receive the best possible care during delivery.
Long-term Implications
Being large for gestational age may have long-term implications for a child's health, including:
- Increased risk of obesity: LGA babies may be more likely to experience obesity and related health problems later in life.
- Metabolic disorders: There is some evidence to suggest that LGA babies may be at increased risk for developing metabolic disorders, such as type 2 diabetes.
It's essential for parents of LGA babies to work closely with their healthcare provider to monitor their child's growth and development, and to address any potential health concerns early on.
Article last updated on: 15th June 2025.
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