Ключевые слова: bacterial infection, black tongue, body parts, boy, care, close up, closeup, closeups, darkening, disease, enterobacter cloacae, examination, female, fungal infection, gums, health, hiv, hygiene, illness, infection, kidney disease, latent illness, lingua villosa, lips, liver damage, magnifying glass, male, man, mouth, mucosal, open mouthed, openmouthed, oral, oral hygiene, oral thrush, person, sickness, sore, spots, symptoms disease, teeth, tongue, unwell, virus, xerostomia,