Evan Webeck is a reporter for MLB.com and covered the Dodgers on Tuesday. Todd Zolecki has covered the Phillies since 2003, and for MLB.com since 2009. Read his Phillies blog The Zo Zone, follow him on Twitter and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.
Onychoschizia or splitting of the fingernails is a common problem seen by dermatologists. The term onychoschizia includes splitting, brittle, soft or thin nails. Onychoschizia is more common in women. Only very rarely are internal disease or vitamin deficiencies the reason (iron deficiency is the most common).nychoschizia or splitting of the fingernails is a common problem seen by dermatologists. The term onychoschizia includes splitting, brittle, soft or thin nails. Onychoschizia is more common in women. Only very rarely are internal disease or vitamin deficiencies the reason (iron deficiency is the most common).
1 Nail Splitting and Nail Cracking Split nails or cracked nails can be problematic all on their own, but they can also be fingernail disorders that signal another health problem. 2  Nail splitting and nail cracking can be due to a thyroid condition (hyperthyroidism or hypothyroidism) or psoriasis. Nail Splitting and Nail Cracking Split nails or cracked nails can be problematic all on their own, but they can also be fingernail disorders that signal another health problem. 2  Nail splitting and nail cracking can be due to a thyroid condition (hyperthyroidism or hypothyroidism) or psoriasis.