Urinary tract infections caused by mycoplasma are usually seen in men with inflammatory urethra. Mycoplasma easily infects the mucosa of the male urethra causing non-gonococcal urethritis. Clinical symptoms are mainly stinging pain in urine, burning urine, and an increase in white discharge from the urethra, which is white and thin, and the amount of secretion is usually relatively small. In the morning, a white discharge can be seen blocking the urethra. Mycoplasma infection is usually transmitted through sexual contact. After a woman is infected with mycoplasma, it often causes cervical inflammation, but the symptoms are not obvious, and is transmitted to the man during sexual intercourse, resulting in a non-gonococcal urethritis that causes the clinical symptoms described above. Since this is a sexually transmitted disease, it should be treated aggressively once diagnosed.