why?
 

i had done a cut 8 hours ago and it was half cm wide, but i thought it didn't need stitches, because it had stopped bleeding 10 minutes later, but i put a gauge on it and it was still started bleeding again, but i kept the gauze on and now that i took it off it is still bleeding. is it because of the gauge?

It may have started bleeding again because you disturbed the blood clotting that had become established. The gauze itself wouldn't have restarted the bleeding. Put pressure on it again for 10minutes, if it bleeds through then add another layer. By the sounds of it is from it not bleeding for 10minutes earlier it shouldn't take too long. Once it has stopped it might be worthwhile not disturbing the layer of gauze closest to your skin and just bandaging that for now and then at a later point, say just before you go to bed/ when you wake up in the morning, totally change the dressing. Otherwise you could go to the hospital but as you've done it more than 8hours they are unlikely to do much. Once it has stopped bleeding you can close the wound together with steristrips. This will help it to heal better/quicker, reduces scarring, and reduce the chance of it becoming infected. As they hold the wound together too, it will lessen the chances of it starting the bleed once more but in some places they will not be very effective at holding the edges of the wound together such as close to joints. These should be only applied within 24hours of making the original wound though and make sure you have cleaned it before you use them. If you don't have steristrips you can make your own butterfly stitches;

Butterfly bandages are best for closing a long cut.Use an adhesive strip (such as Band-Aid) to provide continuous pressure. Always put an adhesive strip across a cut rather than lengthwise. A butterfly bandage (made at home or purchased) can help hold cut skin edges together:

• • Using a clean scissors, cut a strip from a roll of 1-inch adhesive tape and fold it sticky side out. Cut notches into the tape as shown in illustration A above.
  • Unfold the tape; then fold the notched pieces together, sticky side in as in illustration B above. The center of the tape will not be sticky. Keep the part that will be over the cut clean.
  • Place one end of the tape on the skin. Then pull the other end to close the wound tightly as in illustration C above.
  • If the cut is long, use more than one bandage.
• Apply a clean bandage at least once a day, or when the old bandage gets wet or dirty.