Do I need stitches or something?
 

You should be able to close it with steri strips. Information on how to do that is in the wound care guide. You will be able to get them from pharmacies and some super markets. If you are not sure how to apply them though then it would be best to go and get the wound checked and treated, preferably as soon as possible because many places won't close wounds after a certain period of time. Also for future reference, measurements of wounds are not allowed on the board.

I imagine that if they cut doesn't show signs of healing by itself that it may need stitches.
Don't forget to keep it clean x

Hope u've seen somebody to get it fixed up, really if it keeps bleeding for 10mins even after constant pressure please see someone about it.

It troubles me that people aren't allowed to post about how open or deep the wound is. It's kind of essential information if the First Aid section of the site is to be remotely useful.

Am I allowed to say how wide a wound needs stitches? I really hope so. I'm going to anyway, because it's important. About a centimetre, maybe a bit less. If it's considerably less than that, try get hold of some steri-strips. Wounds less than about 3-4mm should close on their own, but might scar badly. Be safe, and sensible.