Snapshot A 25-year-old woman presents to her dermatologist’s office for acne. She reports that she had severe acne when she went through puberty. However, this resolved before she graduated from high school. In the past year, as she prepared applications for medical school, she reports that she is getting acne every month around the time of her menstruation. She also reports having worse acne when her stress levels coincide with her menstruation, though this is just speculation. On physical exam, she has no active lesions, but marked post-inflammatory hyperpigmentation consistent with the resolution of previous acne lesions. She is started on oral contraceptives for management of her acne, along with a topical retinoid. Introduction Clinical definition login to view 1 more bullet Epidemiology login to view 14 more bullets Etiology login to view 4 more bullets Pathogenesis login to view 8 more bullets Associated conditions login to view 3 more bullets Prognosis login to view 2 more bullets Presentation Symptoms login to view 1 more bullet Physical exam login to view 7 more bullets Studies Making the diagnosis login to view 1 more bullet Differential Hidradenitis suppurativa Rosacea Folliculitis Treatment Management approach login to view 1 more bullet Medical login to view 45 more bullets Complications Permanent acne scarring and cosmetic disfigurement