Originally Posted by macronicutie
a few months ago i bruised my big toe nail playing football. the discolored part grew out or went away or wutever... lol.. but at the top of the nail where the bruise used to be... there's an elevated area. it's like a bump on the nail. it doesn't go straight across. it's only on the left side. would anyone know what it is?
It is the damage to the matrix (or the nail bed) that has formed a bit of scar tissue underneath the nail plate, which has elevated the nail plate in that area. Usually, this damaged portion will grow forward with the nail plate until it grows off at the free edge as long as the damage was done to only the nail bed. If it was damage done to the matrix (the portion of the nail unit that produces the nail plate cells), then the bump may always remain.