Assertion: adult onset acne | /r/CapableOf | fluctuate undiagnosed medical condition
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Source sentences:
text: Some people won't even see acne until their adult years, and there are a number of reasons that American Academy of Dermatology says "adult-onset acne" can occur: fluctuating hormone levels, stress, family history, hair and skin care products, medication side effects, or an undiagnosed medical condition.