I smatched my finger and i'm worried thay it was sprained ...my nail is bleeding and turning dark purple and its a but swollen, i am able to move it ?

Trephination: Bleeding under the nailbed can be very painful because it can create a large pressure. In the er or an urgent care ctr, docs will perform a trephination (create a small hole in the nail to let the blood out) thus relieving the pressure and relieving the pain.

Let explain: Most likely when smashed you sprain your finger but what degree? The color under the nail it is from bleeding under the nail it is a good idea to have an x-ray to if the bone broken? Good luck. Thanks.

Have it evaluated.: Try to avoid moving it too much for now. You may need a x-ray taken to see if you have a bony injury. Have it evaluated and get the appropriate treatment.