Since there’s a medical term for everything, there are two terms to describe the problem: “The medical terms for nail splitting include onychorrhexis (vertical ridging and ... primarily internal ...

Melanonychia typically appears as a vertical (longitudinal ... your normal skin tone A crack or split down the middle of the ...

Since there’s a medical term for everything, there are two terms to describe the problem: “The medical terms for nail splitting include onychorrhexis (vertical ridging and splitting ...