Ключевые слова: abnormal, aging, beauty, brittle nails, calcium, caucasian, close up, coarse, condition, cuticle, defect, deficiency, deformed, diet, disease, diseases, eczema, female, finger, fingernail, gray background, health, horizontal, human, line, lines, lunula, mineral, nail, problem, protein, ridge, ridged, ridges, short, short cut, sign, surface, symptom, thumb, thyroid, uneven, unhealthy, unrecognizable, vertical, vertical lines in fingernails, vertical ridges, vitamin, warning of a health, white,