Psoriasis?: The knee-jerk reaction to brittle toenails is fungus infection, but that would be very unusual in a 17-year-old. Since fingernails are also involved, psoriasis is my first thought, but there are other possibilities. Let a dermatologist take a look, and give you a precise diagnosis and specific treatment.
Answered 12/15/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
2 doctors weighed in across 2 answers
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