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Yellow nails
As Web MD has noted, the yellow nails is one of the most common warning sign that your fingernails will give, and they have added that one of the most common reasons of yellow nails is a fungal infection. In a few cases, they also say that it might show a more serious condition as for example a thyroid disease, lung disease or diabetes. Doctor Anthony has moreover stated that the yellow nails can be as well a cause from smoking which strains the nails, so maybe you will want to quit that if you notice your nails are constantly yellow, he furthermore added.
Ridged nails:
Anthony has added that the reason why people will notice horizontal ridges on the nails is because there may exist some direct trauma to the nail or maybe it can be a cause of some more serious sickness in which case you are going to notice it on more than only one nail, and so furthermore he added that the reason this can happen is that your body is working overtime because it tries to fight the sickness so it is saving energy for the rest of the body that will need it more. What your body wants to say to you is that the nails are not so important for energy.
