Baby Born At 36 Weeks Average Weight: Baby Born At 37 Weeks Average Weight:
The average weight of babies born at 36 weeks is around 4 pounds. The average weight of babies born at 37 weeks is around 5 pounds.
In the first few days after birth, the newborn’s body needs to get used to its new surroundings. It will need to grow accustomed to being held and fed regularly.
It may even have some difficulty with swallowing.
A healthy baby weighs between 2,000 and 3,500 grams (6½ – 8¾ ounces). A normal weight for a newborn is between 1,800 and 2,200 grams (4 ½ to 6 ¼ ounces) .
The average length of time it takes for a newborn to reach full size varies from one individual to another. For example, some babies take longer than others.
However, all babies are expected to be able to sit up without assistance within three months of their due date.
It is common for a newborn to weigh less than half what it did when it was born. This is because the lungs and other organs continue growing throughout the first year or so of life.
By six months, most newborns weigh between two and four kilograms (5½ and 10½ pounds), though they may still remain underweight if they have breathing problems or complications during delivery.
A full-term baby is considered to be healthy if it gains around 450 grams (15 ounces) a week after birth.
A newborn that is born weighing less than 1,500 grams (53¼ ounces) is considered to be underweight. If it weighs 1,500 – 2,499 grams (53¼ – 93¼ ounces), it is considered to be low birth weight.
If a baby is very premature, it may need special care and extra support. This can be provided directly after birth in the form of specialist care or within the first few days of life in the form of extra visits from a pediatrician.
A baby weighing 4,000 grams (141 ¼ ounces) or more is considered to be a large newborn. As well as being heavier than average, these babies tend to have proportionally longer bodies and shorter legs.
Sources & references used in this article:
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Development of the human coagulation system in the healthy premature infant by M Andrew, B Paes, R Milner, M Johnston, L Mitchell… – 1988 – ashpublications.org
Superior vena cava flow in newborn infants: a novel marker of systemic blood flow by M Kluckow, N Evans – Archives of Disease in Childhood-Fetal and …, 2000 – fn.bmj.com
Perforation of the colon after exchange transfusion in the newborn by AB Friedman, RM Abellera, I Lidsky… – New England Journal …, 1970 – Mass Medical Soc
Short-term outcomes of infants born at 35 and 36 weeks gestation: we need to ask more questions by GJ Escobar, RH Clark, JD Greene – Seminars in perinatology, 2006 – Elsevier
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Renal control of sodium and fluid balance in newborn infants during intravenous maintenance therapy by A Aperia, O Broberger, K Thodenius… – Acta …, 1975 – Wiley Online Library