Nails are mostly made up of a protein called keratin. The latter also mainly consumes the skin and hair. Whether they are brittle, soft, grooved or split, your nails reveal the deficiencies you suffer from and the state of your health.

Dry, brittle or cracked

The reasons may be different. This can be caused by dryness, swimming in the pool, washing dishes without gloves or using toxic cleaning agents. It can also be age related or just if you are in a humid environment.

To treat them, moisturize them with lotion or cream. However, if the syndromes persist, consult a doctor as this may be associated with hypothyroidism.


If it was long thought that these tasks were associated with a lack of calcium, according to the Health site, they would actually be associated with light shocks. They are therefore not a sign of a health problem. They may be associated with a micromalformation of the keratin.

On the other hand, a marked discoloration can be a sign of anemia or liver disease.

dark fingernails

If your nails change color, or if they hurt when they grow in and you haven’t bumped into it, then you need to see a doctor again. In fact, this syndrome can be associated with melanoma, which can cause black bands or lines on the nails.

Domed nails

This type of nail can be hereditary. But it can also be a sign of a lack of oxygen in the blood and mean a lack of oxygen in the blood and problems with the respiratory tract. For example, one bronchitis chronic, lung disease or even emphysema.

curved nails

If your nails have a curved shape, it could be a sign of vitamin C or iron deficiency. This is confirmed if they are slightly pale. To overcome this, you can take supplements.

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