You may have noticed little white marks on your fingernails but never really knew what they were.
Many may have thought that this was down to a calcium deficiency with some referring to them as ‘milk spots’.
However, that has been now been dismissed, reports The Mirror.
It turns out the marks are actually a sign of a condition called punctate leukonychia.
But before you start searching Google in a panicked state, it is worth noting that the marks are nothing sinister.
Typically, they appear simply because there’s been some trauma to the nail.
This doesn’t have to be anything major. If you slam your nails in a door, of course your nails are going to suffer. But even small things like excessively tapping them at your desk can cause them.
Chewing can also lead to white marks, as can flicking your pen, or even bashing them about while cleaning.
How do the white spots form?
The little white spots form at the base of the nail bed. They they grow out gradually before surfacing. By the time you notice them, you’ll probably have forgotten what caused the trauma in the first place.
However, very occasionally the dots might tell you something more.
Puncate might not mean a lack of calcium, but could suggest a zinc deficiency. Eating foods such as spinach, kidney beans, beef, and seeds is a good way to combat this.
In worse cases, the white marks might reveal signs of malaria, Hodgkin’s disease, or sickle cell anemia. But these are extremely rare, and shouldn’t really be your primary concern if you get normal leukonychia. There are usually other signals to tell you you’re unwell.
A time to worry would be if you were to see signs of leukonychia totalis .This is when the entire nail goes white. If you notice this happening, book an appointment with your GP as it could mean something like heart disease or diabetes.
Mees lines is also something to look for. This is when a white mark stretches across the whole nail, forming a sort of ‘band’.
Got Mees’ lines? You’ve likely been poisoned – probably by arsenic or thallium. If you can see them, though, you can’t have been, because if you had, you’d almost certainly already be dead.
Subscribe to our email updates today to guarantee you never miss another Lincolnshire story.
Our daily newsletters are jam-packed with the best stories hand-picked by our news editors.
To sign up just head over to this page – or enter your email into the black box at the top of this story.