Abstract
Introduction: Klinefelter syndrome (KS) is defined as (a chromosomal disorder in which males have an extra X chromosome). KS presents clinically with signs of androgen deficiency including low testosterone. Androgenetic alopecia (AGA) develops as a response of the hair follicle cells to androgens in individuals with genetic predisposition. Case Presentation: We describe a 17-year-old male patient with KS who developed AGA with a Ludwig pattern. Conclusion: Our patient had a good response to oral minoxidil, finasteride, and low-level light therapy.