Painful Nail Pressure: What to Do When Your Nail Hurts? - Dermatology

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Pressing on the nail causes pain?


Yesterday, while eating water chestnuts, I applied too much pressure and my nail cracked a bit.
Today, I noticed that the area under the nail is red, and there are small black spots visible from the front.
It hurts when I press on it.
What could be the issue?

Hong Zhe, 10~19 year old female. Ask Date: 2021/11/08

Dr. Li Yufen reply Dermatology


Hello: Based on the description, it seems to be inflammation and pain caused by a nail injury.
If the condition does not improve or worsens, it is recommended to consult a nearby dermatologist for diagnosis and treatment.
Thank you!

Reply Date: 2021/11/08

More Info


When you experience pain in your nail, especially after an incident like cracking or injuring it while eating, it can be concerning. Based on your description, it sounds like you may have sustained a minor injury to the nail bed, which can lead to several outcomes, including bruising or a subungual hematoma (a collection of blood under the nail). The red color you see, along with the black dot, could indicate bleeding beneath the nail, which is common after trauma.

Here are some steps you can take to manage the situation:
1. Assess the Injury: First, examine the nail closely. If the nail is not completely detached and the pain is manageable, you may be able to treat it at home. However, if the nail is severely cracked or detached, or if you notice significant swelling, increased redness, or pus, it’s essential to seek medical attention.

2. Clean the Area: Gently clean the area around the nail with soap and water to prevent infection. Avoid using alcohol or hydrogen peroxide directly on the wound, as these can irritate the skin.

3. Pain Management: Over-the-counter pain relief medications such as ibuprofen or acetaminophen can help alleviate pain and reduce inflammation. Be sure to follow the recommended dosage on the packaging.

4. Cold Compress: Applying a cold compress to the affected area can help reduce swelling and numb the pain. Wrap ice in a cloth and apply it for 15-20 minutes at a time, several times a day.

5. Avoid Further Trauma: Protect the nail from further injury. If necessary, you can cover it with a bandage to keep it safe from bumps and scrapes.

6. Monitor for Infection: Keep an eye on the injury for signs of infection, which can include increased redness, swelling, warmth, or pus. If you notice any of these symptoms, it’s crucial to consult a healthcare professional.

7. Consult a Doctor: If the pain persists, the nail appears to be severely damaged, or if you have concerns about the injury, it’s best to see a doctor. They may need to drain any accumulated blood under the nail or provide further treatment.

In terms of the long-term outlook, most minor nail injuries heal on their own, and the nail will typically grow back normally. However, it can take several weeks for the nail to fully heal, especially if the injury was significant.
If you find that the pain worsens or if you experience any unusual symptoms, do not hesitate to seek medical advice. A healthcare provider can offer a more accurate diagnosis and treatment plan tailored to your specific situation.

In summary, while a painful nail can be alarming, many cases can be managed effectively at home with proper care. However, always err on the side of caution and consult a healthcare professional if you have any doubts about the severity of the injury or if your symptoms do not improve.

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