What could cause my nail to randomly hurt, and how can I prevent it?

Your nails might hurt suddenly because of tiny injuries or repeated pressure that you may not always notice. For example, banging your finger or bumping your nail can cause minor damage to the nail bed, sometimes causing pain or small blood collections under the nail. In other cases, an infection like paronychia can start when tiny cuts or breaks in the skin let germs in. This infection makes the area around the nail sore and swollen. Another possible cause is nail deformities, which can sometimes make the nail more susceptible to infection. To help prevent random nail pain, try the following steps:

• Keep your nails trimmed straight across to reduce the chance of injury.
• Avoid biting or picking at nails, as this can lead to small injuries or infections.
• Use gloves when doing chores that involve harsh chemicals or excessive water exposure.
• Be cautious during everyday activities to avoid accidentally bumping your nails.

If your nail pain continues or worsens — especially if you notice redness, swelling, or pus — it's important to see a healthcare provider. You can start by taking a free symptom checker assessment to better understand your symptoms and get personalized guidance on the right treatment to keep your nails healthy.