What is lunula and what does it say about your health?


If you carefully look at your nails you will notice the white crescent like shape on the bottom of the nails. The change in the color, size and shape of these lunulae can indicate vulnerability to certain diseases. Knowing of these signs could help prevent and treat the conditions early. Here are some changes in the crescents of nails that could help you identify your health status.


  • The lunula on the little finger must either be small or non-existent. The crescent on this finger is directly related to the kidneys, small intestines and heart. Large size of lunula on the pinkie could be the result of hypertension.
  • The lunula on the ring finger is related to the reproductive and lymphatic system and smaller and barely visible crescent could indicate indigestion.
  • The crescent on the middle finger is related to the brain, lung and heart functions. If there is no crescent on the middle finger, it could indicate malfunction in the circulatory system and high blood pressure.
  • Crescent on the index finger could indicate the malfunction of the spleen and small intestine. Non-communicable disease on the above neck region could cause the lunula to decrease significantly in size or even disappear.
  • Thumb lunula indicates the function of the lungs. It is easily visible and must cover no more than 25% of the thumb. It could be very small on smokers and large on those who have arterial hypertension.
  • Big lunulae are crescents covering 1/3 or more of the nails. They could indicate malfunction of the heart and respiratory organs, irregular pulse and low blood pressure. Big lunulae are present on the nails of athletes and other highly active people and if they are present on an inactive person, it could because of stress.
  • Small and barely visible lunulae indicate low blood pressure and circulatory malfunctions. They could be signs of low immune system, slow metabolism or deficiency of iron and vitamin B 12.
  • Invisible lunula could occur naturally so you must not be disturbed if you have never had them. However, if the crescents are gone out of nowhere it could indicate circulatory problems.
  • Change in color of lunula: grey color of crescents indicate high fatigue, indigestion and inability to absorb nutrients. White color is natural and healthy for crescents of nails should be whiter than the skin. Purplish lunula color indicates weak circulation and low levels of blood oxygen, headaches and vision blurriness.  Rose color lunula indicates inactivity and respiratory problems. Dark lunula is very rare and very dangerous; it shows poisoning from heavy metals.

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