Intracranial pressure

When you think of your brain, picture it like a big squishy ball that's inside your head. This ball needs to be protected, so your skull (the bone that covers your brain) keeps it safe.

Inside your skull, there is also some liquid (called cerebrospinal fluid or CSF) that helps cushion and protect the brain even more. This liquid is constantly flowing in and out of the brain, like a river.

But sometimes, things can happen that cause pressure to build up inside your head. This can be because of an injury, like hitting your head really hard, or because of a disease, like a brain tumor or meningitis.

When there's too much pressure inside your head, it can cause a lot of problems. You might have a bad headache, feel dizzy or tired all the time, or even start to have trouble seeing, hearing, or moving.

Doctors can measure the pressure inside your head using something called an intracranial pressure (ICP) monitor. It's a small device that goes inside your head and measures the pressure. If the pressure is too high, doctors might give you medicine or even surgery to help relieve it.

So, to sum it up, intracranial pressure is the pressure inside your head that can build up and cause problems if it gets too high. But don't worry - doctors can help if this happens!