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Difference Between Petechiae Purpura and Ecchymosis

January 10, 2018Posted byRanidu

Key Difference –Petechiaevs Purpura vs Ecchymosis

Skin manifestations are one of the most vital signs that are frequently overlooked by patients as well as by some healthcare professionals. They often signify the prevalence of an underlying condition that requires medical attention. Not identifying these dermatological changes properly can put the patients’ lives in peril. Petechiae, purpura, and ecchymosis are three of the commonest manifestations that are predominantly associated with vasculitis. They can be seen in various other diseases also. Petechiae are pinhead-sized macules of blood in the skin. A large macule or a papule of blood that is not blanched by the application of pressure using a glass lens is identified as purpura whereas large extravasation of blood into the skin is known as ecchymosis. So the difference in these skin changes lies in their size. Thekey differencebetween Petechiae, Purpura and Ecchymosis is thatPetechiae are the smallest and ecchymoses are largest, Purpura is usually smaller than ecchymoses but larger than Petechiae.

CONTENTS

1.Overview and Key Difference
2.What is Petechiae
3.What is Purpura
4.What is Ecchymosis
5.Side by Side Comparison – Petechiae vs Purpura vs Ecchymosis in Tabular Form
6.Summary

What are Petechiae?

瘀点在th大小斑点的血液e skin.

Causes of Petechiae

  • Thrombocytopenia
  • Leukemia
  • Endocarditis
  • Sepsis
  • Injuries
  • Mononucleosis
  • Scurvy
  • Vasculitis
  • Viral hemorrhagic fever
  • CMVinfection
  • Adverse effects of different drugs such as antidepressants and anticonvulsants
Difference Between Petechiae Purpura and Ecchymosis

Figure 01: Oral Petechiae

Management

Before starting the management, the exact cause of Petechiae has to be identified. When there is an infection, appropriate anti-microbial agents have to be used to counter the infection. If the Petechiae is a result of adverse drug reactions, consider the replacement of those medications with some other drugs.

What is Purpura?

A large macule or a papule of blood that is not blanched by the application of pressure using a glass lens is identified as purpura.

Causes of Purpura

  • Thrombocytopenia
  • Senile purpura which is due to weakening of capillary walls with age
  • Corticosteroidtherapy
  • Vasculitis
  • Schamberg’s disease
Difference Between Petechiae Purpura and Ecchymosis_Figure 02

Figure 02: Purpura

The underlying cause has to be identified and treated.

What is Ecchymosis?

A large extravasation of blood into the skin is known as ecchymosis.

瘀斑的原因

  • Some medications such as warfarin,antibiotics, and corticosteroids
  • Bleeding disorders
Key Difference Between Petechiae Purpura and Ecchymosis

Figure 03: Ecchymosis

Similar to the other two conditions, in ecchymosis also the underlying cause has to be aptly treated. Once that is done ecchymoses spontaneously disappear.

What is the Difference Between Petechiae Purpura and Ecchymosis?

瘀点、紫癜vs Ecchymosis

Petechiae 瘀点在th大小斑点的血液e skin.
Purpura A large macule or a papule of blood that is not blanched by the application of pressure using a glass lens is identified as purpura.
Ecchymosis A large extravasation of blood into the skin is known as ecchymosis.
Size
Petechiae Petechiae are the smallest in size.
Purpura Purpura is larger than Petechiae but smaller than ecchymoses.
Ecchymosis Ecchymoses are the largest where there is widespread extravasation of blood.

Summary – Petechiaevs Purpura vs Ecchymosis

瘀点在th大小斑点的血液e skin. A large macule or a papule of blood that is not blanched by the application of pressure using a glass lens is identified as purpura. Large extravasation of blood into the skin is known as ecchymosis. These skin changes are differentiated from each other according to their size. Petechiae are the smallest of the three and ecchymoses are the largest. Purpura is of moderate size. This is the difference between these three dermatological manifestations.

Download the PDF Petechiae vs Purpura vs Ecchymosis

You can download PDF version of this article and use it for offline purposes as per citation note. Please download PDF version hereDifference Between Petechiae Purpura and Ecchymosis

Reference:

1.Gawkrodger, David J. Dermatology: An Illustrated Colour Text. 3rd ed., Churchill Livingstone; 2002.

Image Courtesy:

1.’Oral petechiae’By Mdscottis – Own work,(CC BY-SA 3.0)viaCommons Wikimedia
2.’Purpuraschoenleinhennoch’By Peter Rammstein – Own work,(CC BY 3.0)viaCommons Wikimedia
3.’shiner’by Katy Warner(CC BY-SA 2.0)viaFlickr

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Filed Under:DiseasesTagged With:Compare Petechiae Purpura and Ecchymosis,Ecchymosis,Ecchymosis Cause,Ecchymosis Clinical Features,Ecchymosis Defintion,Ecchymosis Management,Petechiae,Petechiae Cause,Petechiae Clinical Features,Petechiae Definition,Petechiae Management,Petechiae Purpura and Ecchymosis Differences,Petechiae Purpura and Ecchymosis Similarities,瘀点、紫癜vs Ecchymosis,Purpura,Purpura Cause,Purpura Clinical Features,Purpura Definition,Purpura Management

About the Author:Ranidu

Ranidu is passionate about writing articles on medical topics in general parlance. His experience in communicating with the general public during his medical practice has enabled him to describe facts that a layman has to know about a particular disorder in a concise and understandable manner.

Comments

  1. N/Asays

    May 12, 2020 at 5:36 pm

    Skin manifestations are one of the most vital signs that are frequently overlooked by patients as well as by some healthcare professionals. They often signify the prevalence of an underlying condition that requires medical attention. Not identifying these dermatological changes properly can put the patients’ lives in peril. Petechiae, purpura, and ecchymosis are three of the commonest manifestations that are predominantly associated with vasculitis. They can be seen in various other diseases also. Petechiae are pinhead-sized macules of blood in the skin. A large macule or a papule of blood that is not blanched by the application of pressure using a glass lens is identified as purpura whereas large extravasation of blood into the skin is known as ecchymosis. So the difference in these skin changes lies in their size. The key difference between Petechiae, Purpura and Ecchymosis is that Petechiae are the smallest and ecchymoses are largest, Purpura is usually smaller than ecchymoses but larger than Petechiae.

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