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Splinter hemorrhages

Definition

Splinter hemorrhages are small areas of bleeding (hemorrhage) under the fingernails or toenails.

Alternative Names

Fingernail hemorrhage

Considerations

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 (endocarditis). They may be caused by vessel damage from swelling of the blood vessels (vasculitis) or tiny clots that damage the small capillaries (microemboli).

Common Causes

  • Bacterial endocarditis
  • Injury to the nail

Home Care

There is no specific care for splinter hemorrhages. Follow your health care provider's instructions for treating endocarditis.

Call your health care provider if

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 health care provider's office

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:

In addition, your health care provider may order:

After seeing your health care provider, you may want to add a diagnosis of splinter hemorrhages to your personal medical record.

References

Tosti A. Diseases of hair and nails. In: Goldman L, Ausiello D, eds. Cecil Medicine. 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 450.

Mackowiak PA, Durack DT. Fever of unknown origin. In: Mandell GL, Bennett JE, Dolin R, eds. Principles and Practice of Infectious Diseases. 7th ed. Philadelphia, Pa: Elsevier Churchill Livingstone; 2009:chap 51.


Review Date: 8/15/2011
Reviewed By: Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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