Under the nails or in the nail beds, splinter hemorrhages appear as thin lines or streaks of blood. This blog post explores the causes, symptoms, diagnosis, treatment, and prevention of splinter hemorrhages, which can be frightening, but they are usually harmless and may resolve on their own.
Causes
The following factors can cause splinter hemorrhages:
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Splinter hemorrhages can result from minor trauma or injury to the nail bed, such as banging the finger or toe.
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Splinter hemorrhages are caused by bacterial or fungal infections of the nail bed or surrounding tissues.
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Splinter hemorrhages can result from inflammation of the blood vessels (vasculitis) caused by underlying medical conditions such as lupus, rheumatoid arthritis, or scleroderma.
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Small blood clots can form as a result of infectious endocarditis, a bacterial infection of the heart valves, and travel to fingers or toes, resulting in splinter hemorrhages.
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Splinter hemorrhages can result from nail disorders such as psoriasis, lichen planus, or onychomycosis (fungal nail infection).
Symptoms
Symptoms of splinter hemorrhages include:
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Under the nails, splinter hemorrhages appear as small, reddish-brown lines or streaks.
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In most cases, splinter hemorrhages occur under the nails, most commonly under the fingernails, but may also occur under the toenails.
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Splinter hemorrhages are usually small and range in size from a few millimeters to a centimeter in length.
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Splinter hemorrhages can persist for weeks to months, depending on the underlying cause.
Diagnosis
An examination by a healthcare provider is usually sufficient for diagnosing splinter hemorrhages. In some cases, additional tests or evaluations may be performed to rule out underlying medical conditions.
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Splinter hemorrhages may be associated with recent trauma, infections, or underlying health conditions.
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Check the nails and surrounding tissues for signs of infection or inflammation and assess the size, location, and characteristics of the splinter hemorrhages.
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Performing laboratory tests to determine whether underlying infections, inflammatory conditions, or blood disorders exist, such as complete blood count (CBC), blood cultures, or tests for inflammatory markers.
Treatment
Depending on the cause and severity of the condition, splinter hemorrhages may resolve on their own without specific treatment. The following treatment options may be available if splinter hemorrhages persist or are associated with underlying medical conditions:
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Splinter hemorrhages may be caused by underlying infections, inflammatory conditions, or nail disorders.
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Prevent further damage and promote healing by keeping the nails clean and trimmed, avoiding trauma to the nails, and practicing good nail hygiene.
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In cases of severe or persistent splinter hemorrhages related to conditions such as infective endocarditis, antibiotics or antifungal medications may be prescribed.
Prevention
The prevention of splinter hemorrhages may involve preventing trauma, infections, or underlying medical conditions that can result in nail bed bleeding. Some common prevention strategies include:
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If you engage in activities that may cause trauma to your nails, such as construction work or gardening, wear gloves or protective gear.
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Keep the nails clean and dry, avoid biting or picking at them, and use gentle nail care techniques to prevent infections.
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In case of persistent or recurrent splinter hemorrhages, consult a healthcare provider, as they may indicate an underlying medical condition.