They can hurt more than cuts, but they heal quicker. Punctures stab deep. Leave punctures open so they won't get infected. You can treat most cuts, scrapes, and punctures yourself. But you should get emergency care if you are bleeding a lot, or if you are hurt very badly.
Blood gets thicker after bleeding for a few minutes.
This is called clotting. Clotting slows down bleeding. Press on the cut to help slow down the bleeding. You may have to apply pressure for 10 minutes or more for a bad cut. Sometimes a cut needs stitches.