“Black In The Face” is the name given to the amount of darkness or black looking areas in a person’s face.
Those areas merit attention and a special name because they can be used by anyone to diagnose physical, mental and health problems in another human being.
The simple rule of thumb for “Black In The Face” health diagnosis is “The more black areas there are in the face, the more health problems or the sicker the person is”.
More complex diagnoses can be made by observing the exact pattern of Black In The Face and the intensity of the blackness in the locations it is observed in.