| Gram negative |
| Aerobe |
| Sneathia |
| Acinetobacter species |
| Escherichia coli |
| Delftia acidovorans |
| Neisseria cinerea |
| Pseudomonas aeruginosa |
| Anaerobe |
| Fusobacterium species |
| Bacteroides species |
| Leptotrichia amnionii |
| Porphyromonas species |
| Veillonella species |
| Prevotella species |
| Gram positive |
| Aerobe |
| Streptococcus species |
| Bacillus species |
| Staphylococcus species |
| Enterococcus species |
| Micrococcus luteus |
| Anaerobe |
| Lactobacillus species |
| Peptostreptococcus species |
| Eubacterium species |
| Cutibacterium (formerly Propionibacterium) acnes |
| Other |
| Ureaplasma species |
| Mycoplasma hominis |
| Candida species |
| Abiotrophia defectiva |
| Gardnerella vaginalis |
| Other bacteria in the Firmicutes phylum |
