File talk:Bacteria - gram-stained vaginal smear 01.jpg

From Embryology

Gram-stained vaginal smears illustrating the different categories of vaginal microflora described:

  • a, b: grade Ia, i.e. mainly Lactobacillus crispatus cell types, plump quite homogeneous lactobacilli.
  • c, d: grade Ib, i.e. non-L. crispatus cell types, long or short, thin lactobacilli.
  • e, f: grade Iab, i.e. containing mixtures of L. crispatus and non-L. crispatus cell types.
  • g, h: grade I-like, i.e. irregular-shaped Gram positive rods.
  • i, j: grade II, i.e. mixture of Lactobacillus cell types and bacterial vaginosis-associated bacteria (Gardnerella, Bacteroides-Prevotella and Mobiluncus cell types).
  • k, l: grade III, i.e. bacterial vaginosis.