Leukonychia (or leuconychia), is a medical term for white
discolouration appearing on nails.[2]:658–9 It is derived from
the Greek words leuko (“white”) and onyx (“nail”). The most
common cause is injury to the base of the nail (the matrix)
where the nail is formed.
![Leukonychia](http://lodenwaterleidingen.nl/wp-content/uploads/2020/02/Leukonychia.jpg)
Other possible reasons for this problem with nail colour can be linked to:
Arsenic poisoning
Lead poisoning
Pneumonia
Heart disease
Kidney failure
Lees verder: http://loodinamsterdamnoord.nl/leukwik1