<unk> <unk>  of a toe A<unk>  is a collection of blood<unk>  underneath a toenail or fingernail <unk> . It can be extremely painful for an injury of its size, although otherwise it is not a serious medical condition.
Subungual hematoma
Subcutaneous abscess
Periungual wart
Dens evaginatus
Pectus carinatum
Skin fissure
Epignathus
Omphalolith