Step 4: Read and complete the decision guide to learn more about your symptoms.
You could have injured the finger or toe in a way that requires prompt evaluation. For example, if there is a dark purple, red or black area under the nail, you might have a "subungual hematoma" (meaning "blood under the nail") which can be drained to provide relief. Another possibility is that you broke a bone in your finger or dislocated it. For significant pain in the fingernail or toenail that followed a direct injury, see your physician for evaluation, especially if the pain is not improving on its own.
Would you like to learn more about these or other common causes of nail problems?