Melanonychia: Discolored Fingernails
Causes and Treatments
What is Melanonychia?
Melanonychia is a condition that causes the nails to become discolored. The discoloration can be brown, black, or gray, and it can appear in bands or streaks. Melanonychia is usually caused by an increase in melanin, the pigment that gives skin its color. In most cases, melanonychia is harmless, but it can sometimes be a sign of a more serious condition, such as melanoma.
Causes of Melanonychia
There are a number of different things that can cause melanonychia, including:
- Trauma to the nail
- Fungal infections
- Psoriasis
- Eczema
- Certain medications
- Melanoma
Treatment for Melanonychia
The treatment for melanonychia depends on the underlying cause. If the discoloration is caused by a fungal infection, your doctor may prescribe an antifungal medication. If the discoloration is caused by psoriasis or eczema, your doctor may recommend topical treatments or oral medications. In some cases, surgery may be necessary to remove a nail that has been damaged by melanoma.
When to See a Doctor
It is important to see a doctor if you notice any changes in the color or texture of your nails. Melanonychia can sometimes be a sign of a more serious condition, such as melanoma. Your doctor can help you determine the cause of your melanonychia and recommend the best course of treatment.
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