SUMMARY.— A study has been made of nail growth in normal healthy subjects and in patients with psoriasis. Nails with pitting grew significantly faster than clinically normal nails of psoriatic patients, which in turn grew faster than those of normal controls. Of the nails measured, those of the middle finger grew more quickly than the others, the thumb and little finger growing most slowly; right hand nails grew faster than those of the left hand.
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R.P.R. DAWBER (1970) studied this question.