Normal Flora of the Genitourinary System

Normally, the urine and urinary tract above the entrance to the bladder are essentially free of microorganisms; the lower urethra, however, has a normal resident flora. Species of Lactobacillus, Staphylococcus (coagulase-negative), Corynebacterium, Haemophilus, Streptococcus, and Bacteroides are common inhabitants.

The normal flora of the genital tract of women is influenced by the action of estrogen hormones on the epithelial cells of the vaginal mucosa. When estrogens are present, glycogen is deposited in these cells. The glycogen is converted to lactic acid by lactobacilli, resulting in an acidic pH that inhibits the growth of many potential pathogens. Lactobacilli may also release hydrogen peroxide, a powerful inhibitor of some anaerobic bacteria, as a by-product of metabolism. Thus, the normal flora and resistance to infection of the female genital tract vary considerably with the person's hormonal status. For example, prepubertal girls, having low estrogen levels, are much more susceptible to vaginal infections with Streptococcus pyogenes and Neisseria gonorrhoeae than women during the child-bearing years. ■ lactobacilli, p. 275

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Bacterial Vaginosis Facts

Bacterial Vaginosis Facts

This fact sheet is designed to provide you with information on Bacterial Vaginosis. Bacterial vaginosis is an abnormal vaginal condition that is characterized by vaginal discharge and results from an overgrowth of atypical bacteria in the vagina.

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  • zewdi
    What is the normal flora which is found on genitourinary track?
    2 years ago
  • lola
    What are the normal።flora of the kidney?
    2 years ago
  • charles
    What are the normal flora that inhibits the urinogenital tract?
    2 years ago
    2 years ago
    What does normal genital urinary tract flora mean?
    2 years ago
  • Madihah
    How to balance normal gentiourinary flora?
    1 year ago
  • wolfgang
    Does normal genital urinary tract flora isolated mean i have an infection?
    1 year ago
  • aaran
    How much resident flora is normal in the bladder?
    1 year ago
  • Ferdinand Took
    Where is normal flora found in the genitourinary tract?
    11 months ago
  • jasmine
    What are recommended treatments for genital urinary tract flora?
    10 months ago
  • Lily
    What does 100000 resident flora mean?
    10 months ago
  • rian
    What is resident flora of urine?
    10 months ago
  • odetta
    What dows Culture Normal genital Urinary tract flora isolated?
    9 months ago

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