What causes a baby to have a big head?

Causes of macrocephaly include: Benign familial macrocephaly – other family members with big heads (inherited) Excess fluid in the brain – benign extra-axial fluid of infancy or hydrocephalus.

Why does my baby have such a big head?

Macrocephaly is the term for an unusually large head. An infant with macrocephaly will have a larger head than most other infants of the same age and sex. In many cases, this condition is benign or harmless. In other cases, it may indicate an underlying medical condition, such as a genetic syndrome or a brain tumor.

What syndrome causes a big head?

Macrocephaly is the condition of having an abnormally large head, including the scalp, cranial bone, and intracranial content. The most common type is benign familial macrocephaly, but the condition also is associated with chromosomal anomalies and various phenotypic syndromes.

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.

Does having a big head mean anything?

Science says larger brains are correlated with higher intelligence, but size alone isn’t the cause. It’s common to hear people say that the size of your brain has nothing to do with your level of intelligence. … So yes: On average, people with bigger heads tend to be more intelligent.

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What does it mean if my baby’s head is growing 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.

Do premature babies have big heads?

Your baby may have very mild symptoms of premature birth, or may have more-obvious complications. Some signs of prematurity include the following: Small size, with a disproportionately large head. Sharper looking, less rounded features than a full-term baby’s features, due to a lack of fat stores.

Should I be worried if my baby has a big head?

The medical term for a large head is “macrocephaly.” Most of the time, it isn’t a serious condition, so parents don’t need to worry about it. In rare cases, however, it can be an indication that your baby has other health conditions.

What are early signs of autism?

Early Signs of Autism

  • no social smiling by 6 months.
  • no one-word communications by 16 months.
  • no two-word phrases by 24 months.
  • no babbling, pointing, or meaningful gestures by 12 months.
  • poor eye contact.
  • not showing items or sharing interests.
  • unusual attachment to one particular toy or object.

What does a large head circumference indicate?

Children with macrocephaly have a head circumference (the measurement around the widest part of the head) that is greater than the 98th percentile. Sometimes a large head means that there is a problem in the brain which might require surgery.

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