There are black spots inside the toenails, which need to be treated according to the cause

It is quite common to have black spots inside toenails. There are many reasons for this phenomenon, which may be due to disease factors or genetic factors. If there is a nutritional deficiency or trauma, it will also cause this phenomenon.

1. Caused by diseases : myocarditis, other heart diseases, hemorrhagic diseases. These diseases are relatively serious and blackening of fingernails and toenails is a manifestation of the disease. By treating related diseases, the darkening symptoms will gradually subside.

2. Heredity : Many people's nails and toenails are naturally darker. This is hereditary and can be solved by manicure.

3. Nutritional deficiency: If calcium, vitamin A and other elements are lacking for a long time, the nails will easily turn black. Of course, this situation is generally rare.

4. Caused by trauma : Bleeding due to squeezing, or scratches on the nails and not receiving timely treatment, blood stasis and other reasons can also cause the nails to turn black.

5. Increased melanin under the nail : Certain drugs such as ethidium bromide and arsenicum, etc., can cause the nails to turn black after trauma or contact with black dyes.

There are many reasons why nails turn black, and onychomycosis is generally the most likely cause. Since onychomycosis is caused by pathogenic fungal infection, the symptoms are generally characterized by the nails losing their luster and turning gray and black.

6. Fungal infection: Even if the body is not suffering from a serious illness, but the nail plate is significantly thickened, the surface is uneven, and it is black. At the same time, it is loose and fragmented, and keratin and debris are often deposited under the nail. Generally, if you suffer from onychomycosis, you need to go to the hospital for examination and treatment in time.