ELI5: Explain Like I'm 5

Macrocephaly

Macrocephaly is when someone's head is bigger than usual. Just like how some people are tall or short, some people's heads are big or small. When someone has macrocephaly, their head may look larger than the heads of their friends or family members. It's usually nothing to worry about, and it's not contagious like a cold or flu. Sometimes, macrocephaly can be caused by certain medical conditions, so it's important to talk to a doctor if you're concerned. But most of the time, having a big head is just part of who you are, like having a certain eye color or hair type.
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