Mycoplasma urealyticum growth often indicates the presence of Mycoplasma decidua infection in humans. Mycoplasma decidua often infects the human urethral mucosa causing non-gonococcal urethritis, which is usually transmitted through sexual contact, and for some people who have multiple sexual partners or a history of unclean sex are easily infected with Mycoplasma decidua thus causing urethritis. The main clinical manifestations are burning urine, stinging urine, and increased white thin discharge from the urethra. For as much as possible mycoplasma infection caused by non-gonococcal urethritis should be strictly to carry out active treatment, generally can choose doxycycline, azithromycin and other drugs for anti-infection treatment. Usually a week after the end of treatment to pay attention to the review, if two consecutive review results are negative is considered clinical cure, during the treatment period it is best not to have sex, to avoid causing sexual contact transmission.