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.
splinter hemorrhage. Splinter hemorrhages by definition are tiny bleeding points in the nail bed and hyponychium of the nail unit. The nail bed is the skin under the nail, which begins where the moon (lunula) ends and the nail plate just begins to lift up from the skin underneath.