Skin lesion is a boo-boo on your skin. It’s like when you get a scrape on your knee, but it’s on your skin instead. A lesion can look like a bump or a sore, and it can be different colors like red, brown, or even white. Sometimes it can be small like a pimple, and sometimes it can be big like a red patch. If you have a lesion, it means that something happened to your skin, like it got hurt or you have a bug bite. Sometimes the lesion can go away on its own, but other times you need to go to the doctor to get it checked out. It’s important to take care of your skin and protect it from getting too much sun or scratches so you don’t get any lesions.