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Awesam t1_jcsdt7k wrote

Reply to comment by [deleted] in What causes raised ridges in human fingernails/toenails? by afcagroo

…among other things… (this list is far from exhaustive or even complete) this could also just be natural variation. The same reason you’re eyes have a certain pattern or freckles or whatever. Not everything is a pathology or necessarily a disorder.

Source: MD

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