What Can Cause A Black Toenail?

Anemia

Another underlying condition that could be the cause of a black toenail is anemia, which occurs when the body isn't producing the number of red blood cells it's supposed to. This blood disorder is very common and affects well over three million individuals throughout the United States. The main symptoms associated with anemia include pale skin, headaches, and severe chest pains. While anemia on its own isn't always a serious condition, this issue is commonly brought about by the presence of another disease interfering with the body's production of red blood cells. These causes can include everything from ulcers and menstrual bleeding to kidney disease. The symptoms patients will experience when affected by this condition primarily include fatigue, headaches, chest pain, and shortness of breath. The development of a black toenail most often occurs with sickle cell anemia.

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