ungual
Inframammary means under the breast. Inframammarial means pertaining to under the breast.
you put it under nail polish
subscapular
pertaining to under the stomach
Yes
Subhepatic
The actual infection is of the bed of the nail and of the plate under the surface of the nail
hypophrenic
Nail plate
yes
It usually happens when you've either hit the nail or trapped it somehow - it's a bruise under the nail.