Scarlet red

Heat

Yellow

Heat of gallbladder

Pale

Affection of spleen by cold, vacuity of Yang qi of kidneys

White

Affection of spleen by cold, vacuity of Yang qi of kidneys

Dark blue

Stagnation of blood, heat, affection by cold

Blue

Affection by cold

Green shadow

Vacuity of the qi of liver

Concave inside

Vacuity of the qi of blood, affection by cold

Surface imperfections

Vacuity of the qi of blood

Strips on the nails

Vacuity of the qi of spleen, affection by cold

Large bulging nails

Vacuity of the qi easy, affection by cold

Small nails

Vacuity of the qi of heart

Dry nails

Heat of liver and gallbladder

Fragile nails

Vacuity of the qi of liver

1. normal form of the nail
2. short, flat nail (organic diseases of heart)
3. the [whitish] half-circle by the root of the nail is large (tachycardia)
4. the [whitish] half-circle by the root of the nail is absent (heart neurosis)
5. large convex nail (tuberculosis of lung)
6. convex nail with large [whitish] half-circle by the root of the nail (congenital tuberculosis)
7. flat curved nail (bronchial asthma, bronchitis - congenital forms)
8. pipe-like high nail (cancer)
9. clavate nail-bone (congenital forms of mental disorders, brutality, aggression, rage)
10. concave nail (congenital forms of alcoholism)
11. flattened/splintered nail (helminth invasion)

1. pink (normal)
2. dirty - gray (congenital syphilis)
3. yellow (pathology of liver)
4. dark brown (fever)
5. green - yellowish (purulent processes)
6. red (erythremia)
7. pale - red (diseases of blood)
8. pale (anemia)
9. light-blue or dark blue (congenital defects of heart)
10. white spots on the nail (nervous system disorder)
11. yellowish spots on the nail (some brain disorders)
12. black-gray spots on the nail (mercury intoxication)