Nails in a healthy person have a single color pink. The yellowish shade of all of them, or yellow spots on one or more plates - this is how the first signs of diseases of the nails, and sometimes - of the internal organs can manifest themselves.
The pathological process begins with a change in the thickness of the nail. It becomes coarser and thicker, or, on the contrary, thin and brittle, then its color changes. Nails become dull, get a rough surface, begin to flake off and stain.
If you notice that all the nail plates look yellowish, then such symptoms can be observed with systemic pathologies or, conversely, be the result of more innocuous reasons - negligence towards the nails, reaction to a new varnish or a new cosmetic procedure. However, even in the latter case, changes occur in the nail plate and skin under the nails, accompanied by symptoms of dystrophy and allergization.
Yellow spots on the nails after building, shellac, ordinary varnish, indicate that they suffered from the toxicity of the applied coating and hypoxia. They need care and time for regeneration. The same approach is needed if the nails have suffered from contact with household chemicals, have turned yellow after drug therapy or due to intense smoking. In the latter case - time and care will not help, you need to quit smoking.
If you do not paint your nails and do not abuse carrot juice and coffee, and yellowness is still present, you need to see a doctor, because such a defect may be a symptom of a serious illness. It is possible that the yellow spots on the nails are the first signs of a latent pathological process.
Yellowing of the nail plates on all the limbs can be a sign of obstructive jaundice or viral hepatitis. In this case, concomitant symptoms may be nausea, bitterness in the mouth, discomfort or abdominal pain.
Stagnation of the lymphatic fluid causes the nails to turn yellow on the affected limb. This is one of the first symptoms. Lymphedema is usually combined with a rapidly increasing edema. Such a violation can be observed on one limb, legs often suffer.
Common diseases that do not give a first symptomatic symptoms can attract attention by the fact that the surface of the skin under the fingernails has turned yellow (hemosiderosis). This may be the first sign of developing neoplasm, cardiovascular or respiratory pathologies. Concomitant symptoms in this case are fast fatigue, shortness of breath, rapid heart rate, unobtrusive cough.
The appearance of the persistent yellowness of the nails, which can not be linked to recent manipulations with nails, work with household chemicals and other "harmless" reasons, must be sure to alert and induce to go to a medical institution.
Yellow patches on the nails of the legs with systemic pathologies appear in the first place, since the violation of peripheral circulation begins with a farther periphery.
It is likely the development of lymphostasis of the foot, especially if the yellowness is noted on the nails of one limb.
The cause of a yellowish nail shade can be diabetes , from which, in the first place, suffer from lower limbs.
Hemosiderosis of the skin under the toenails can develop with other common diseases, in addition, the toenails can suffer from applying toxic varnish when performing a pedicure.
The yellow spot on the thumb of the toe can speak of compression deformation due to pressure by the shoes. In this case, in addition to mechanical damage to the nail plate, the likelihood of developing mycosis increases in this place.
Fungal diseases also often begin to develop on the nails of this particular finger. It is the most loaded with walking, through it pass the vessels that provide blood circulation of the foot, so physicians have long noticed that both general and age-related degenerative processes affecting the epidermis and nail plates begin with the lower extremities and, first of all, are visible on the thumb .
For the same reasons, yellow spots appear on the nails of the hands. External symptoms of changes in the nails from the action of any factors are similar. To establish the exact cause of the appearance of spots, you need to visit a doctor and conduct the necessary diagnostic tests.
With any dystrophic changes, the nail becomes thinner, begins to separate, crumbles.
Fungal lesions lead to thickening of the nails. Not only the color changes, the nail becomes cloudy, its structure is loose, the cells of the subungual plate intensively divide - hyperkeratosis is observed, the platen near the nail can be affected. For fungal fungal infections of nails, an unpleasant odor is characteristic of them.
Psoriasis and other dermatoses are also accompanied by thickening of the skin under the nails and around them, thickening of the nails themselves, the appearance of holes, depressed grooves, dashes, delamination and brittleness. In psoriasis, spots under the nails and plates are not only yellow, but gray and white.
As a result of intoxications, in particular, the medicinal nails also turn yellow, thicken, under them the cells of the bed tissue grow, their shape changes, fragility increases. The color of the nails depends on the type of toxic substance and can be from light yellow to rich orange.
When carotenoderma are colored in yellowness, it appears not only on the nails, but also on the palms and feet, the pigments of coffee and nicotine gums color not only the nails, the skin also acquires an unhealthy icteric tinge.
The color of the nail can be suspected a number of pathologies. White-yellow spots on the nails can be seen with psoriasis . Exactly the same spots can be the result of coating the nails with gel-varnish. Apparently, onychodystrophy develops in both cases.
A yellow-brown (brown) spot on the nail may be a sign of candidiasis, which first affects the peri-osacoccus roller. It swells, reddens and hurts, flakes, it can crack, the cuticle disappears. Then the infection spreads to the nail plate - it loses its transparency, becomes thicker and darker. Later begins to flake and crumble. With candidiasis, the nail plates can also become covered with transverse brown wavy grooves.
Yellow-brown nails are observed in the development of onychriphysis. They become hard, thick and dull, very long, curved to the side and resemble the claws of a bird of prey.
Multicolored specks are observed when the mold is affected by a fungus, which, by the way, is usually introduced under the nail, already affected by dermatophytes or yeast fungi. In the beginning, spots are seen through a transparent nail, their color can be different as in mold - white, yellow, greenish, gray and black. All colors are not necessarily present, for example, there may be a yellow-green spot on the nail or black-green. Molded fungus is very often affected by the big toe, less often the little finger. Additional symptoms are slow rates of the disease development, intensive growth of horn cells (hyperkeratosis), as a result of which the free edges of the nail are raised and discolored.
Epidermophytia is manifested by the appearance of yellow and yellow-green stripes and spots on the side of the free edge of the nail, gradually they grab the entire nail, which changes shape and begins to crumble.
Currently, often diagnosed polymycosis - infection with several species of fungi.
A yellow-pink spot on the nail may appear from the impact of aggressive chemicals, as a result of drug intoxication and infectious endocarditis. Traumatic hemorrhage may also look like a yellow-red or yellow-pink stain under the fingernail. Perhaps over time the blood will curdle and the spot will darken.
As can be seen, it is impossible to visually diagnose, guided only by external signs of spots on the nails. The yellowness of the nails indicates degenerative-dystrophic changes in the nail plate. To successfully get rid of a defect, you need to diagnose and determine the cause of such changes.