Splinter hemorrhages

Definition

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

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).

Causes

Causes may include:

Home Care

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 provider if you notice splinter hemorrhages and you haven't had any recent injury to the nail.

Splinter hemorrhages most often appear late in endocarditis. In most cases, other symptoms will cause you to visit your provider before splinter hemorrhages appear.

What to Expect at Your Office Visit

Your provider will examine you to look for the cause of splinter hemorrhages. You may be asked questions such as:

The physical exam may include special attention to the heart and blood circulation systems.

Laboratory studies may include:

In addition, your provider may order:

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


Review Date: 8/14/2015
Reviewed By: Linda J. Vorvick, MD, Medical Director and Director of Didactic Curriculum, MEDEX Northwest Division of Physician Assistant Studies, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

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