Infectious Disease Compendium



A Ureaplasm. reaplasma has 14 serotypes divided into two groups/biovars-Ureaplasma parvum and Ureaplasma urealyticum. There are others in dogs, cats and other animals.

Epidemiologic Risks

A sexually transmitted disease.

Part of normal genital flora with a colonization rate of 40-80%.

PCR best test.


Urethritis, epididymitis and prostatitis.

Sterile pyuria. PID? BV? Perhaps mostly biovar 2's.


Doxycycline 100 mg bid x 7 days; 10% of ureaplasmas are resistant to tetracyclines, erythromycin 500 mg qid x 7 days.

In urine samples, doxycycline is most reliable (PubMed).

OR macrolides such a 1 gm azithromycin.

OR quinolones, although resistance to EES and ciprofloxacin (35%) is increasing (PubMed).


Curious Cases

Relevant links to my Medscape blog


Last Update: 06/18/18.