[A Case of Mycoplasma genitalium Urethritis Refractory to Treatment].

A 28-year-old man was diagnosed with chlamydial urethritis by his previous doctor and was prescribed minocycline (MINO). The result of a urinary chlamydia polymerase chain reaction (PCR) test later confirmed to be negative. However, the patient visited our hospital because of persistent miction pain. Upon arrival, pyuria was observed, and we suspected a relapse of chlamydial urethritis, and a single dose of 1,000 mg of azithromycin (AZM) was administered. Urinary gonorrhea/chlamydia PCR and urinary Mycoplasma genitalium (MG) PCR were performed, and only MG was positive. After diagnosis of MG urethritis, sitafloxacin (STFX) 100 mg for5 days, AZM 500 mg for3 days, and MINO 200 mg for7 days were prescribed, but urinary MG PCR did not become negative, and finally MG became negative after 14 days of STFX 100 mg was prescribed.