Okay kiddo, imagine your hand is like a big, round cookie. Now, let's say you take your other hand and press down really hard in the middle of the cookie. What happens? Do you see how the cookie breaks apart in the middle where you pressed down? That's kind of like what a fissure is!
A fissure is a small, narrow crack or break in something. It can happen in all sorts of things, like rocks or metal or even the ground! Sometimes, people can get fissures in their skin, especially around their bottoms. This is called an anal fissure and it can be really uncomfortable and hurt a lot.
But don't worry, just like how a broken cookie can be fixed by putting the pieces back together, an anal fissure can be treated by a doctor who will help it heal and make it feel better again. Remember, it's always important to tell an adult if something hurts or doesn't feel right so they can help you fix it!