What causes black nails (what causes black toenails)

In daily life, many people will find that their nails are black when observing their nails. In fact, black nails may be a sign of some diseases. Therefore, in daily life, once we find that our nails are black, we must pay attention to it. What exactly causes black nails? How should it be treated? Let us give a brief introduction below.

In daily life, many people will find that their nails are black when observing their nails. In fact, black nails may be a sign of some diseases. Therefore, in daily life, once we find that our nails are black, we must pay attention to it. What exactly causes black nails? How should it be treated? Let us give a brief introduction below.

What causes black nails?

Black nails are related to many diseases. For example, after changing the oil, some diseases caused by infection may cause black nails. For example, myocarditis or some heart diseases and hemorrhagic diseases may also cause black nails. Some people even have black nails due to genetic factors, or long-term lack of calcium and vitamin A, etc., which may cause black nails. Of course, in addition to black nails caused by diseases, some trauma may cause black nails, such as when squeezed by external force or blood stasis, etc., the fingernails may also turn black. In addition, some special jobs or contact with some special drugs and chemical products may cause the accumulation of melanin in the fingernails and toenails, resulting in the blackening of the fingernails.

Now we know what causes black nails? Therefore, there are many causes or situations that lead to black nails. When we find that our nails are black, we must strictly follow the doctor's instructions for treatment. Because different diseases cause different situations of black nails, the treatment will also be different.