When should I be concerned about my baby’s head size?
The simple definition of the word macrocephaly is “large head.” Doctors apply that diagnosis when a baby’s head size is in the 98th percentile. This means that the baby’s head is bigger than 98% percent of other babies of the same age. Sometimes, doctors detect macrocephaly during an ultrasound before the baby is born.
Does head size matter in babies?
Preliminary studies have shown that 1-year-old babies with bigger heads score higher on IQ tests later in life. And bigger heads do tend to hold bigger brains.
Does the size of a baby’s head affect intelligence?
Those with the biggest heads tended to have the highest IQ scores. The researchers found that head growth by age 1 was the key factor. Catch-up growth didn’t matter as much.
What does baby head size indicate?
Another measure of infant growth is head circumference, or the size of your baby’s head. It’s important because it can indicate how well their brain is growing. If your baby’s brain isn’t growing properly, they may have a condition known as microcephaly.
Do autistic babies have large heads?
After accounting for sex, height, weight and genetic ancestry, the researchers found that children with autism do tend to have larger heads than their unaffected siblings, but the difference is small: just 2 millimeters on average.
What causes babies to have large heads?
In babies, whose cranial bones are not yet fully fused to one another, this pressure can force those bones apart, causing the head to grow abnormally large. In such cases, the fontanelles, or “soft spots,” on top of the head and between some of the main cranial bones, may bulge out noticeably.
Why do some babies have bigger heads?
Benign familial macrocephaly is an inherited condition. It happens in families predisposed to having larger heads. Sometimes there is a problem with the brain, such as hydrocephalus or excess fluid. Underlying conditions will require treatment.
What is considered a big head?
The average size male head is 22″ 1/2 and the average size woman head is 21″ 3/4. The one size fits all (OSFA) hats stop at about 23″, so a person would find it difficult finding a hat that fits around a size 7 1/2 and above. In the hat world, head sizes over 23″ 3/8 would be considered a big head.
What does it mean if an infant’s head grows too fast?
It’s normal for a baby’s head to grow a lot during the first year. But with congenital hydrocephalus, the head may grow faster than the normal rate for a baby’s height and weight. The condition may cause the soft spot (fontanelle) on your baby’s head to feel firm or bulge out.
Does a big head mean a bigger brain?
Even though head size also depends on factors such as the muscularity of the head and thickness of the bone, it’s very likely that a bigger head means a bigger brain. But Hurlburt says people with bigger brains aren’t necessarily smarter than those with smaller ones.