Korean Journal of Andrology  2008;26(4):237-239

Polycythemia as a Complication of Long-acting Injectable Testosterone Undecanoate.

Dong Sik SHIN 1 ; Ki Won KO ; Sang Gan NAM ; Myeong Heon JIN ; Je Jong KIM ; Du Geon MOON

Affiliations

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Keywords

Erythrocytosis; Polycythemia; Testosterone

Country

Republic of Korea

Language

Korean

Abstract

Polycythemia is a condition in which the red blood cell count is increased due to an inherited or acquired mutation, a physiologic response to hypoxia, autonomous erythropoietin production, or deliberate erythropoietin administration. Higher testosterone levels appear to act as a stimulus for erythropoiesis and testosterone replacement therapies have rarely been reported as causes of polycythemia. We report here a case of a 51-year-old man with polycythemia that was caused by long-acting testosterone undecanoate (Nebido(R)).