Totally! There's lots of YouTube videos on it too!
You need:
- small sewing needle (as small as you can get it)
- a cotton ball and alcohol wipes (or some other disinfectant
- bandaid (or bandage if it's big enough)
- thread (like fishing wire or silk or even nylon)
If it's a big gash you need to go to the doctor. If it has stuff in it, don't close the wound with foreign materials inside (that seems like common sense, but, you know).
Once you have the wound sewn shut you need to bandage it up.