Urinary Tract Infections in Pregnancy

Michael Melia, M.D.

PATHOGENS

Common:
- Escherichia coli (80-85%)
Less common but not rare:
- Staphylococcus saprophyticus
- Group B Streptococcus
- Other Enterobacterales
- Enterococcus spp.
Rare:
- P. aeruginosa,H. influenzae, M. tuberculosis
- Ureaplasmaspp. and Mycoplasma spp. have been described, but their potential roles remain controversial.
Chlamydia trachomatis can cause urethritis with dysuria and pyuria but is not associated with cystitis or acute pyelonephritis.

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