ELI5: Explain Like I'm 5

Hyperplasia

Okay kiddo, so you know how our bodies are made up of organs and tissues, right? Well, sometimes our bodies need to grow more of these tissues to help our organs work better or replace old or damaged cells. This is what we call hyperplasia.

Think about it like building blocks, you know how sometimes you need more blocks to build a bigger tower? That's kind of what's happening in our bodies with hyperplasia. Our cells are making more of themselves, so they can build or repair things better.

Now, this can happen for lots of different reasons, like when our bodies are healing from an injury or when we're going through puberty and our bodies are growing bigger. Sometimes, though, hyperplasia can happen when it's not supposed to, and that can be a problem.

For example, some people can get hyperplasia in their thyroid gland, which is a small organ in their neck that produces hormones that help control the body's metabolism. If too many cells grow in the thyroid, it can start to produce too much hormone, which can cause all sorts of problems.

So, long story short, hyperplasia is when our bodies make more cells to help build or repair things, but sometimes it can happen when it's not supposed to, and that can cause health problems.