White spots can also be the result of repeated trauma to the nail bed — this means that getting manicures too often can cause spots, even if there isn't a significant injury, says Engelman.

White spots on your nails are often the result of a nail injury called leukonychia. Other potential causes of white spots in your nails include allergies, fungal infection, mineral deficiency, or ...

In this case, the white spot will appear from the nail bed, as it’s caused by a disruption to the growth of the nail. “This will present as white spots as the nail grows out,” Dr Lynch adds.