What causes a baby’s head not to grow?

Should I be concerned if my baby’s head is small?

Chances are your doctor will detect microcephaly at the baby’s birth or at a regular well-baby checkup. However, if you think your baby’s head is smaller than normal or isn’t growing as it should, talk to your doctor.

When should I be concerned about my baby’s head size?

If your baby’s head is measuring small or is not growing: Your baby’s doctor may be concerned about failure to thrive (when a child doesn’t take in enough calories or is unable to utilize them and doesn’t grow properly as a result).

What causes a fetus to have a small head?

Microcephaly is a condition where the head (circumference) is smaller than normal. Microcephaly may be caused by genetic abnormalities or by drugs, alcohol, certain viruses, and toxins that are exposed to the fetus during pregnancy and damage the developing brain tissue.

Can babies have small heads normal?

Microcephaly is a condition where a baby’s head is much smaller than normal. It is most often present at birth (congenital). Most children with microcephaly also have a small brain and intellectual disability. Some children with small heads have normal intelligence.

When do babies heads grow the most?

Your baby’s head will grow at its fastest rate during the first 4 months after birth than at any other time. This increase is due to rapid brain growth. The average head circumference at birth is about 13.5 in. (34.5 cm).

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Why does my baby have such a big head?

One of the most common reasons for macrocephaly is something that doctors call “benign familial macrocephaly.” In other words, big heads run in your family. A doctor might determine that a baby’s big head is inherited by measuring the heads of the parents.

Preliminary studies have suggested links between brain size, head size, and IQ, but head circumference isn’t directly correlated with intellect.

How early can microcephaly be detected?

Although microcephaly and intracranial calcifications are typically detected during ultrasounds in the late second and early third trimester of pregnancy, these findings might be detected as early as 18-20 weeks gestation.

Children's blog