What are the common reasons for experiencing pain in my fingernails?

There are several reasons why you might feel pain in your fingernails. Sometimes, a small bump or repeated pressure can hurt the nail, which might create a little bruise or build up of blood under the nail (called a subungual hematoma). This kind of injury can be quite painful. Infections, like a bacterial infection around the nail (paronychia), can also cause sharp pain, swelling, and redness. Inflammatory conditions or even signs of a systemic illness, such as psoriasis or arthritis, can affect your nails and cause pain. The nails are a window into your overall health, so changes in color, shape, or texture, along with pain, might signal something else going on in your body. If you notice that the pain is severe, doesn't go away, or comes with other symptoms such as significant swelling or changes in your nail's appearance, you can use a free AI symptom checker to help identify possible causes before deciding whether to see a healthcare provider. They can help figure out exactly what is causing the pain and recommend the best treatment for it.