Merck Manual

Please confirm that you are not located inside the Russian Federation

Loading

Purpura Simplex

(Easy Bruising)

By

David J. Kuter

, MD, DPhil, Harvard Medical School

Last full review/revision May 2020| Content last modified May 2020
Click here for the Professional Version
NOTE: This is the Consumer Version. DOCTORS: Click here for the Professional Version
Click here for the Professional Version

Purpura simplex is increased bruising that is due to fragile blood vessels.

Purpura simplex is extremely common. The cause is not known. Some doctors think it may be a feature of many disorders, but others think it is a normal variation.

Aspirin and drugs that prevent blood clots (for example, warfarin), low body weight, prior use of corticosteroid drugs, and sun exposure may increase the risk of purpura simplex.

Purpura simplex usually affects women. Bruises develop on the thighs, buttocks, and upper arms in people without known injuries. People may have family members who also bruise easily. Although doctors often do tests of the blood clotting system to look for clotting abnormalities, no abnormalities are found (see also Bruising and Bleeding).

This condition is not serious, and no treatment is needed. However, sometimes doctors recommend that people avoid taking aspirin and aspirin-containing drugs.

Bleeding under the skin may also be more common among older people (a condition called senile purpura). Senile purpura commonly causes bruising on the hands and forearms.

Drugs Mentioned In This Article

Generic Name Select Brand Names
COUMADIN
No US brand name
NOTE: This is the Consumer Version. DOCTORS: Click here for the Professional Version
Click here for the Professional Version
Others also read

Also of Interest

Videos

View All
Overview of the Blood
Video
Overview of the Blood
Blood Transfusion
Video
Blood Transfusion
The blood circulating in the body is made up of several components: red blood cells, which...

SOCIAL MEDIA

TOP