I have this weird black oval under my toenail that appeared about a month ago, should I be concerned? - Quora
![White Chalky Patches on Toenails: Fungus or Dehydrated Nails? -Jennifer Moller MS, PA-C - Newport Beach Dermatology White Chalky Patches on Toenails: Fungus or Dehydrated Nails? -Jennifer Moller MS, PA-C - Newport Beach Dermatology](https://newportbeachdps.com/wp-content/uploads/2018/05/white-superficial-onychomycosis-1.jpg)
White Chalky Patches on Toenails: Fungus or Dehydrated Nails? -Jennifer Moller MS, PA-C - Newport Beach Dermatology
![White Chalky Patches on Toenails: Fungus or Dehydrated Nails? -Jennifer Moller MS, PA-C - Newport Beach Dermatology White Chalky Patches on Toenails: Fungus or Dehydrated Nails? -Jennifer Moller MS, PA-C - Newport Beach Dermatology](https://newportbeachdps.com/wp-content/uploads/2018/05/white-superficial-onychomycosis.jpg)
White Chalky Patches on Toenails: Fungus or Dehydrated Nails? -Jennifer Moller MS, PA-C - Newport Beach Dermatology
![All toenails showed chalky white and opaque nail plates characteristic... | Download Scientific Diagram All toenails showed chalky white and opaque nail plates characteristic... | Download Scientific Diagram](https://www.researchgate.net/publication/262783287/figure/fig2/AS:667715522019339@1536207194587/All-toenails-showed-chalky-white-and-opaque-nail-plates-characteristic-of-leukonychia.png)