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.
The darker the discoloration, the deeper into the nail plate layers the bacteria has traveled. If the bacteria has entered between the nail plate and the nail bed, it will cause the same discolorations and may also cause the nail plate to lift from the nail bed. Fungal Infection of the nail plate.