Background: Gingival pigmentation is a discoloration of the gingiva due to a variety of lesions and conditions associated with several endogenous and exogenous etiologic features.
Objective: The purpose of this study is to describe a report of gingival pigmentation in a patient who used doxycycline.
Case Report: A 21-year-old Caucasian female was under dermatological treatment and antibiotic therapy with doxycycline 100 mg (one time a day) for 90 days.