i've always had this, horizontal depressions in my nails, they eventually grow out, but then another one will appear. Not white ridges just depressions.
Any ideas?
What does horizontal ridges on nails mean?
by highdose 2 Replies latest jw friends
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fokyc
http://www.netdoctor.co.uk/ate/skinandhair/205541.html
"White lines and horizontal ridges, however, although in exceedingly rare cases can be due to arsenic poisoning,
are almost certainly normal."
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Scully
A physician told me that it can indicate a change in the rate of growth of the nail, at the level of the nail bed. Kind of like tree rings, maybe?
A neat experiment would be to take dated photographs of the affected nail(s) on a bi-weekly basis for several months (I'd suggest a year or two) to see if there is a seasonal pattern that emerges.