What Causes a Black Fingernail? Understanding Trauma and Health Indicators
Discover the meaning behind a black fingernail—its causes, signs of injury, and when to consult a doctor.
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A black fingernail is typically a sign of trauma or injury, such as a bruise under the nail (subungual hematoma). It can occur from impact or pressure on the nail. In rare cases, it might indicate an underlying medical condition like a fungal infection or melanoma. If unsure about the cause, it's advisable to consult a healthcare professional for an accurate diagnosis and appropriate treatment.
FAQs & Answers
- What does a black fingernail indicate? A black fingernail usually indicates trauma or a bruise, but it can also signal underlying medical conditions like fungal infections or melanoma.
- How can I treat a black fingernail? Treatment depends on the cause. If it's due to trauma, rest and ice can help. For infections, consult a healthcare professional for appropriate treatment.
- When should I see a doctor for a black fingernail? You should see a doctor if the black fingernail is accompanied by severe pain, swelling, or if you suspect an underlying health issue.
- Can I prevent a black fingernail? To prevent black fingernails, take care during activities that may injure your hands, wear protective gear, and maintain proper nail health.