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Macrocephaly refers to an overly large head in infants. It is not a condition in itself, but it may be a symptom of other conditions or complications in the brain. Learn more about the risk ...


What is the baby head circumference? The baby head circumference of a healthy, full-term baby is between 12.5 to 13.5 inches that are 31.75 – 34.29 centimeters. The head circumference of newborn boys tends to be greater than that of newborn girls as males are born larger and grow faster than females.


Doctors give trusted, helpful answers on causes, diagnosis, symptoms, treatment, and more: Dr. Wilkins on baby large head circumference: Velocity of growth. Has the head circumference grown normally along a single curve between 5th-95th%ile or increased too rapidly, e.g., jumping from 25th to 95th %ile (as may be seen in autism or hydrocephalus), or too slowly, e.g., dropping from 25th to 5th ...


Researchers noted that her head circumference at birth was large, placing her in the 90th percentile. This finding helped researchers hone in on the correlation between large head circumference and damage to the white matter in the brain. In the more recent study, researchers reviewed 4,725 ultrasound screenings of term-born infants.


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Increased head circumference is when the measured distance around the widest part of the skull is larger than expected for the child's age and background. ... (family tendency toward large head size) ... The health care provider usually finds an increased head size in a baby during a routine well-baby exam.


At my last ultrasound at 31w2d, the baby's head circumference was measuring 34w2d, so 3 weeks ahead. However the dr said the anatomy of the brain is completely normal.(The abdominal circumference and femur length were measuring 4 days ahead.)Anyone have experience with large head on ultrasound? So worried...


However, in rare circumstances, a large head could be related to serious problems going on inside the skull. The most important information here is whether the circumference of your baby’s head has been growing along the same growth line since birth. That’s why your doctor measures your baby’s head and follows its growth monthly on a chart.


Among the many traits that parents hope for in a newborn is a big head — maybe not so much at birth, but shortly thereafter. It’s easy for new parents to fixate helplessly on percentiles and metrics, and to start wondering how their newborn’s head circumference stacks up against the average. A big-headed baby implies intelligence, growth, and good genes (a popular notion no doubt ...


As a red flag for autism, a large head circumference at birth is generally not a concern. The problem is when your child’s head grows suddenly, at a quicker rate than the rest of the body, or than the majority of their cohorts. Having a large head is medically known as megalocephaly or macrocephaly or it could be due to hydrocephaly.