This article describes a case of hematuria and urethritis related to androgen stimulation in a female-to-male transsexual receiving testosterone cypionate. Biopsy of the affected urethral tissue revealed periurethral glands which demonstrated a strong positive reaction with immunoperoxidase staining for prostatic specific antigen. When the androgen stimulus was reduced, the patient's symptoms resolved. This report gives evidence for possible androgen-induced pathology in the female urethra.
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