Splinter hemorrhages are small areas of bleeding (hemorrhage) under the fingernails or toenails.
Splinter hemorrhages look like thin, red to reddish-brown lines of blood under the nails. They run in the direction of nail growth.
They are named splinter hemorrhages because they look like a splinter under the fingernail. The hemorrhages may be caused by tiny clots that damage the small capillaries under the nails.
Splinter hemorrhages can occur with infection of the heart valves (
- Bacterial endocarditis
- Injury to the nail
There is no specific care for splinter hemorrhages. Follow your health care provider’s instructions for treating endocarditis.
When to Contact a Medical Professional
Contact your health care provider if:
- You notice splinter hemorrhages and you haven’t had any recent injury to the nail
Note: Splinter hemorrhages usually appear late in endocarditis. Likely other symptoms will cause you to visit your health care provider before splinter hemorrhages appear.
What to Expect at Your Office Visit
Your health care provider will examine you to determine the cause of splinter hemorrhages. The health care provider may ask you the following medical history questions:
- When did you first notice this?
- Have you had an injury to the nails recently?
- Do you have endocarditis, or has your health care provider suspected that you have endocarditis?
- What other symptoms do you have, such as shortness of breath, fever, general ill feeling, or muscle aches?
Physical examination may include special attention to the heart and blood circulation systems.
Laboratory studies may include:
Blood cultures Complete blood count(CBC) Erythrocyte sedimentation rate(ESR)
In addition, your health care provider may order:
Chest x-ray ECG Echocardiogram
After seeing your health care provider, you may want to add a diagnosis of splinter hemorrhages to your personal medical record.