A healthcare provider such as a podiatrist, or foot specialist, can usually best diagnose nail conditions. A history and physical exam, and sometimes a biopsy, are done. The most common long-term effect is pain with walking or exercise. The pain goes way when the nail condition clears up. In some cases, bacteria may infect a nail, and sepsis , or blood poisoning, may occur.
Treatment depends on the condition.
Nails that are bruised and have an underlying blood clot can be extremely painful. They often need to be drained. Because of the risk of an infection, this is usually best done by a healthcare provider. Nails that have been injured and are loose can sometimes be taped in place. The new nail grows in behind the old nail, pushing it away from the nailbed.