Girls are so sensitive, so are their skin and nail. When you hit your hand on something hard it might break, not only break but also detach from the skin. Many of you girls have thin nails due to genes or improper diet.
Do you know that detached nail if not fixed properly can cause infection. It must be heeled as soon as possible and bacteria must be removed properly.
First of all detach your nail properly and carefully with a nail cutter.
Take a wet cotton ball and clean all the blood.
Soak your hands in cold water. Put some salt too, it helps in healing process.
Apply an effective ointment and leave it as it is for 15 minutes.
In the last apply some more ointment and cover your nail with a bandage and let it grow. Try to change the bandage everyday and do not forget to apply ointment daily.