Hello there ....please dont worry,,,most of the toenail colouring pattern is bcos of some nutritional deficiencies,,,,white is indicative of zinc and iron deficiency.....also faint brown or red colour is due to systemic factors.
Certain conditions like psoariais and in rare cases arthritis may lead to different colouring pattern of toe nails.
Next Steps
please get your daughter examined for.
CBC
sr
calcium
sr
uric acid
RA factor
if possible post a picture of the toenail colour.
Health Tips
visit to a MD Physcian or Dermatologist is recommended.