A crushed fingertip or injured nail after a crash
Guidance shaped by a hand surgeon and a hand therapist
In a crash, a fingertip can get crushed between a door, the dashboard or the steering wheel. Blood can pool under the nail and cause intense throbbing. The nail bed underneath may be cut. The bone in the tip of the finger may be broken. A small wound on the outside doesn’t reveal the whole injury. Treatment depends on whether the nail bed, bone, nerves or tendons were hurt. [1]
Have the fingertip checked
Tell your doctor when the finger got trapped and how. Ask if you need an X ray and whether someone can look at the nail bed. The doctor may numb the finger to get a proper look. Mention any numbness, a cut close to the edge of the nail, or trouble bending or straightening the tip. [1]
Do not poke a hole in the nail or pull it off at home. Your care team can decide if trapped blood needs to be drained or a cut nail bed needs repair. [1]
Keep the tip protected while it heals
Ask how to clean and bandage the finger. Find out if the nail should stay protected and when a splint can come off. If you’re told to keep the dressing dry, do so. Move the joints that aren’t protected if your team says that’s OK. [1]
A hand therapist can help if swelling, sensitivity or stiffness gets in the way of your grip. The nail may take time to look normal again. Ask what changes to expect and what would be out of the ordinary. [1]
Signs you need to go back
Get care quickly if the fingertip turns pale or blue or you lose feeling or movement. The same goes for pain that gets much worse fast. Contact your team for redness that keeps getting worse, pus or a fever. Also call if the dressing is too tight or the wound opens up again. [1]
What to ask about the nail and bone
- Is the bone in my fingertip broken, or is the nail bed cut?
- How do I change the dressing and keep the nail protected?
- Which finger joints should I be moving now?
Watch one full dressing change
Before you head home, ask someone on the care team to show you one complete dressing change from start to finish. [1]
Sources and further reading
This is general health information from hand surgery and hand therapy experts. Never drill into a damaged nail or remove it yourself. A doctor should check deep cuts, severe pain and any loss of feeling or movement.
Keep learning
Safe Driving Resource Center
Guides, self-checks and articles for drivers, parents of new drivers, and families recovering after a crash.
