If you were paying attention in the moments after birth, you may have noticed midwives counting and recording something quietly but efficiently. That assessment was the Apgar score – named after the anaesthesiologist Virginia Apgar, who devised it in 1952 – and it is one of the most widely used and durable tools in neonatal care. Understanding what it measures, what a given score means, and importantly what it does not predict can help parents make sense of what is happening in those first minutes.
Healthbooq (healthbooq.com/apps/healthbooq-kids) covers newborn health and the early weeks with a new baby.
What the Apgar Score Measures
Virginia Apgar, then an anaesthesiologist at Columbia University in New York, created the score specifically to provide a quick, reproducible method of assessing a newborn's need for immediate resuscitation. Before the Apgar score, there was no standardised approach; assessment varied by individual clinician and was often delayed. Apgar's system allowed any trained clinician to evaluate a baby's condition within the first minute of life.
The score assesses five signs, conveniently forming the APGAR acronym:
Appearance (skin colour). A fully pink body and extremities scores 2. Blue or pale extremities with a pink body scores 1. Blue or pale all over scores 0. In babies with darker skin tones, colour is assessed at the palms, soles, lips, and mucous membranes rather than the overall skin.
Pulse (heart rate). A heart rate above 100 beats per minute scores 2. Below 100 scores 1. Absent scores 0.
Grimace (reflex irritability). Response to a stimulus such as a bulb syringe or gentle nasal stimulation. A vigorous cry or cough scores 2. A grimace scores 1. No response scores 0.
Activity (muscle tone). Active movement scores 2. Some flexion of arms and legs scores 1. Limp scores 0.
Respiration. Strong cry with normal breathing scores 2. Irregular, slow, or shallow breathing scores 1. Absent scores 0.
When It Is Assessed
The Apgar score is assessed at 1 minute and 5 minutes after birth. If the 5-minute score is below 7, it is reassessed at 10 minutes, and further reassessments occur every 5 minutes until the score reaches 7 or above, or until 20 minutes have passed.
The 1-minute score reflects the baby's response to the transition from the womb to the outside world – a lower score at 1 minute is not uncommon and often reflects the stress of birth rather than any lasting problem. The 5-minute score is more clinically significant; it reflects whether the baby has stabilised or responded to any resuscitation measures.
What the Scores Mean
A score of 7 to 10 at 5 minutes is considered normal and indicates the baby is in good condition. A score of 4 to 6 at 5 minutes indicates the baby may need some assistance, such as stimulation or supplemental oxygen. A score of 3 or below at 5 minutes indicates the need for resuscitation, and the neonatal team will act immediately.
Most babies score 7 or above at 5 minutes. It is quite common for a baby to score 7 or 8 at 1 minute and 9 or 10 at 5 minutes, reflecting the brief period of adjustment.
A perfect 10 is less common than might be assumed, because most babies have at least slightly blue hands and feet in the first minutes of life (acrocyanosis), which gives a score of 1 rather than 2 for the Appearance category.
What the Apgar Score Does Not Mean
The Apgar score is a tool for guiding immediate care. It is not a predictor of long-term developmental outcome, intelligence, or health. Research including work by Casey and colleagues published in the New England Journal of Medicine (2001) examined outcomes in over 150,000 births and concluded that while very low Apgar scores (particularly scores of 0-3 at 5 minutes) are associated with increased neonatal mortality and morbidity, a low Apgar score alone does not predict long-term neurological outcome with sufficient precision to be used as an individual predictor.
Parents sometimes worry that a low early score means something is "wrong" with their baby. In the vast majority of cases, a 1-minute score of 6 or 7 that rises to 9 by 5 minutes is entirely benign. The score was never designed as a developmental marker – Virginia Apgar herself was clear that it was a clinical intervention tool, not a prognostic one.
Scores in Preterm and Caesarean-Born Babies
Apgar scores tend to be lower in preterm babies, which is expected: preterm infants have reduced muscle tone, less developed respiratory drive, and less physiological reserve for the transition to extrauterine life. A score of 7 at 5 minutes in a 28-week premature infant represents a different clinical picture from the same score in a term baby.
Babies born by caesarean section, particularly elective caesareans before the onset of labour, sometimes have transient breathing difficulties because they have not been exposed to the stress hormones (catecholamines) that natural labour releases and that prepare the lungs for air breathing. This can result in a lower initial score, which usually resolves quickly.
Key Takeaways
The Apgar score is a rapid assessment of a newborn's condition at 1 and 5 minutes after birth, covering five signs: Appearance (colour), Pulse (heart rate), Grimace (reflex response), Activity (muscle tone), and Respiration. Each sign is scored 0, 1, or 2, giving a total out of 10. A score of 7-10 at 5 minutes is normal. The Apgar score is not a predictor of long-term development and does not indicate whether a baby will have developmental difficulties. It is a clinical tool for guiding immediate care in the delivery room.
