Submitted by afcagroo t3_11v4ne1 in askscience
crashingintotrees t1_jcryzop wrote
Reply to comment by [deleted] in What causes raised ridges in human fingernails/toenails? by afcagroo
It's my understanding that prevalence of these ridges increase as we age. Certainly true in my case.
[deleted] t1_jcrzm5z wrote
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