Cancer is like when some of the cells in our body, which are supposed to help us grow and stay healthy, start to act a little naughty. You know how we have special building blocks that fit together perfectly to make a strong tower? Well, our cells are like those blocks, and they usually work together really well.
But sometimes, some cells decide to grow too fast and don’t listen to the rules. It’s like if one of your building blocks started to grow bigger and bigger and pushed all the other blocks around. This can create a lump called a tumor.
Some tumors are not dangerous and are just like a big bump, while others can make us feel sick. Doctors help people with cancer by using special treatments, just like a superhero would help someone in trouble!
So, cancer is when some cells get a little too wild, and doctors try to help them behave again so everyone can be healthy and happy!