differences between left and right hemispheres. 1  for many functions, there are no substantial differences between the left and right hemispheres. 2  lateralization of function is statistical rather than absolute. 3  tendencies:
When the nail plate separates from the nail bed, it causes a white discoloration. This is called onycholysis. This can be due to infection, trauma, or products used on the nails. Other causes for onycholysis include psoriasis and thyroid disease. Pitting. Pitting refers to small depressions, or little pits in the nail.
Bruised Nails is a condition in which a clot of blood forms under the nail plate. The clot is caused by injury to the nail bed. It can vary in color from maroon to black. In some cases, a bruised nail will fall off during the healing process.