Finger Injury: Causes, Symptoms, and Treatment
Medically reviewed by Sumiran Racherla, MD, Internal Medicine. Last reviewed: October 23, 2026.
What kind of doctor treats Finger Injury?
A primary care doctor, an urgent care doctor, or an emergency doctor can check most finger injuries. For a broken bone or torn tendon, you may need an orthopedic surgeon or a hand surgeon, a doctor who treats bone and hand problems. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What is a finger injury?
A finger injury is damage to a finger or thumb. Injuries are a common cause of finger pain. Common types include broken finger bones, dislocations, sprains, bruises, cuts, and smashed fingers.
Mallet finger is when you cannot straighten your finger at its last joint. Skier's thumb is an injury to the ligaments in your thumb.
Symptoms
Injuries can cause pain in one or more fingers. You may also notice:
- Tenderness, burning, or stiffness.
- Swelling, redness, or a change in skin color.
- Numbness or tingling.
- Coldness in the finger.
A smashed finger can cause trouble moving the fingertip, bruising of the finger or nail, and loss of the fingernail. The nail bed, where the nail sits, can be hurt too.
With mallet finger, the tip of the finger stays bent toward your palm when you try to straighten it.
Causes and who gets it
Anyone can hurt a finger. Common causes include:
- Contact sports such as football, baseball, or soccer.
- Skiing or tennis.
- Using machinery at home or work.
- Cooking, gardening, cleaning, or repairs at home.
- Falling.
- Punching something.
- Repeated movements, such as typing.
A hammer blow, a car door, or a desk drawer can smash a finger. Mallet finger often happens when something hits the tip of a straight finger and bends it down with force. The tendon is stretched or torn, or it pulls a piece of bone away. A tendon is a cord that attaches muscle to bone. Sports injuries are the most common cause, especially catching a ball.
How doctors diagnose it
Your provider will do a physical exam and look at how your hand and fingers move. You will be asked about your medical history and your symptoms. You may have an x-ray of your fingers and hand. Treatment depends on the cause of the problem.
Treatment
Care at home is often enough for finger pain. Start by avoiding activities that cause the pain. For a minor injury:
- Take off any rings in case of swelling.
- Rest the finger joints so they can heal.
- Ice the finger and keep it raised.
- Use over-the-counter pain relievers such as ibuprofen or naproxen to ease pain and swelling.
- If needed, tape the hurt finger to the one next to it. Do not tape it too tight, because that can cut off blood flow.
Talk with your provider before using these pain medicines if you have heart disease, high blood pressure, kidney disease, or past stomach ulcers or internal bleeding.
For a smashed finger, put a cloth-wrapped ice pack on it. Do not splint a smashed finger without first asking your provider.
Wearing a splint to keep the finger straight is the most common treatment for mallet finger. Keep it on unless your provider says you can take it off. Bending the fingertip can make recovery longer. Surgery is rarely needed except for more severe fractures.
When to see a doctor
Contact your provider if your finger pain is caused by a severe injury, your finger looks out of shape, or the problem lasts after 1 week of home care. Also call if you have numbness or tingling, severe pain at rest, or redness, swelling, or fever. Get swelling checked if it is large or does not go away in a day or so.
Get medical care right away if your finger is bent and you cannot straighten it, or if the skin is cut open and bone shows. Get care right away if you cannot move or feel the tip of your finger, or if the injury involves the palm or a joint. Do the same if your nail is not sitting properly on the nail bed. A crush injury can cause compartment syndrome, which is severe swelling and pressure that needs immediate medical attention.
Call 911 or go to the emergency room if bleeding will not stop.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. Either type of doctor can examine the finger and explain home care.
Common questions
How do I treat a minor finger injury at home?
Care at home is often enough for a minor injury. Take off any rings in case of swelling, rest the finger, ice it, and keep it raised. See your provider if swelling is large or does not go away in a day or so.
Should I splint a smashed finger?
No, do not splint a smashed finger before you talk with your provider. Your provider can check the finger first. Also do not drain blood from under the nail unless your provider tells you to.
How long does a mallet finger take to heal?
It depends on the injury. A stretched tendon should heal in 4 to 6 weeks if you wear a splint all the time. A torn tendon, or one that pulled off a piece of bone, should heal in 6 to 8 weeks of wearing the splint all the time. Then you wear it at night only for another 3 to 4 weeks.
Sources
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
