Blue indicates lack of oxygen, stagnant venous blood, and dehydration. Low blood pressure, can’t handle cold, joints may be stiff.
The following table summarizes indications associated with the color blue:
| Indicator | Association | |
| TONGUE | Blue tongue body | Can be poor circulation, heart disease, impaired respiration, asthma, or internal dampness. |
| Blue tongue body | Before the period the tongue will be blue. | |
| Blue tongue body, menopausal | “Give remedies and the period will come.” M.W. | |
| Red tongue with blue center, flame shaped | Specific indication for Yarrow. M.W. | |
| MOUTH | Bluish white spots surrounded by red | Measles. |
| EYE | Sclera is clear/bluish | Poor circulation or anemia. |
| Whites of eyes are blue | Lack of circulation. | |
| Below Eye | Blue-black “allergic shiners” under the eye, like a black eye | Food allergies or other long-term allergies; low immunity; marrow and kidneys decreased. |
| Blue-black pencil line under eye on orbital ridge | Always a specific food allergy, like chocolate. | |
| Beside Eye | Light blue, puffy, outer corner going toward cheek | Intense pain. |