Purpura: Difference between revisions

Revision as of 03:53, 13 February 2025

A condition characterized by purple spots on the skin due to small blood vessel inflammation

Purpura

Purpura is a condition characterized by the appearance of purple spots on the skin, mucous membranes, or organs. These spots are caused by small blood vessels leaking blood under the skin. Purpura can be a sign of a variety of underlying conditions, ranging from minor to serious.

Types of Purpura

Purpura can be classified into two main types based on the underlying cause:

Non-thrombocytopenic Purpura

Non-thrombocytopenic purpura occurs when there is normal platelet count, but the blood vessels are fragile or there is a problem with the blood clotting process. This type includes conditions such as Henoch-Schönlein purpura (HSP) and vasculitis.

Thrombocytopenic Purpura

Thrombocytopenic purpura is caused by a low platelet count, which can result from conditions such as immune thrombocytopenic purpura (ITP) or thrombotic thrombocytopenic purpura (TTP).

Causes

Purpura can result from a variety of causes, including:

Vasculitis, which is inflammation of the blood vessels.
Platelet disorders, such as ITP or TTP.
Coagulation disorders, which affect the blood's ability to clot.
Infections, which can damage blood vessels or affect platelet function.
Medications, such as anticoagulants or certain antibiotics.

Symptoms

The primary symptom of purpura is the appearance of purple spots on the skin. These spots can vary in size and may be accompanied by other symptoms depending on the underlying cause, such as:

Joint pain or swelling, especially in cases of HSP.
Fever or malaise.
Bleeding from other areas, such as the gums or nose.

Diagnosis

Diagnosis of purpura involves a thorough medical history and physical examination. Additional tests may include:

Complete blood count (CBC) to check platelet levels.
Coagulation tests to assess blood clotting function.
Biopsy of affected tissue to examine for vasculitis or other abnormalities.

Treatment

Treatment of purpura depends on the underlying cause. Options may include:

Corticosteroids to reduce inflammation in cases of vasculitis.
Immunosuppressive drugs for autoimmune causes.
Plasma exchange for TTP.
Intravenous immunoglobulin (IVIG) for ITP.

Related pages

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-'''Purpura''' is a condition characterized by the appearance of purple-colored spots on the skin or mucous membranes caused by small blood vessels bleeding underneath the skin. Purpura spots, also known as [[petechiae]], are typically 0.5–1 cm in diameter.
+{{Short description|A condition characterized by purple spots on the skin due to small blood vessel inflammation}}
+{{Use dmy dates|date=October 2023}}
+== Purpura ==
+[[File:HSP_Vasculitis.jpg|thumb|right|Purpura on the lower extremities]]
+Purpura is a condition characterized by the appearance of purple spots on the skin, mucous membranes, or organs. These spots are caused by small blood vessels leaking blood under the skin. Purpura can be a sign of a variety of underlying conditions, ranging from minor to serious.
+== Types of Purpura ==
+Purpura can be classified into two main types based on the underlying cause:
+=== Non-thrombocytopenic Purpura ===
+Non-thrombocytopenic purpura occurs when there is normal platelet count, but the blood vessels are fragile or there is a problem with the blood clotting process. This type includes conditions such as [[Henoch-Schönlein purpura]] (HSP) and [[vasculitis]].
+=== Thrombocytopenic Purpura ===
+Thrombocytopenic purpura is caused by a low platelet count, which can result from conditions such as [[immune thrombocytopenic purpura]] (ITP) or [[thrombotic thrombocytopenic purpura]] (TTP).
 == Causes ==
-Purpura can be caused by a number of conditions, including [[inflammation]] of the blood vessels (also known as [[vasculitis]]), abnormalities in [[blood clotting]], and certain medications. It can also be a symptom of a number of diseases, such as [[Henoch-Schönlein purpura]], [[immune thrombocytopenic purpura]], and [[thrombotic thrombocytopenic purpura]].
+Purpura can result from a variety of causes, including:
+* [[Vasculitis]], which is inflammation of the blood vessels.
+* [[Platelet disorders]], such as ITP or TTP.
+* [[Coagulation disorders]], which affect the blood's ability to clot.
+* [[Infections]], which can damage blood vessels or affect platelet function.
+* [[Medications]], such as anticoagulants or certain antibiotics.
 == Symptoms ==
-The primary symptom of purpura is the appearance of purple spots on the skin or mucous membranes. These spots do not blanch when pressure is applied. Other symptoms can include [[fever]], [[joint pain]], and [[abdominal pain]], depending on the underlying cause.
+The primary symptom of purpura is the appearance of purple spots on the skin. These spots can vary in size and may be accompanied by other symptoms depending on the underlying cause, such as:
+* Joint pain or swelling, especially in cases of HSP.
+* Fever or malaise.
+* Bleeding from other areas, such as the gums or nose.
 == Diagnosis ==
-Diagnosis of purpura typically involves a physical examination and a review of the patient's medical history. Additional tests may be performed to determine the underlying cause, such as blood tests, [[skin biopsy]], and [[urinalysis]].
+Diagnosis of purpura involves a thorough medical history and physical examination. Additional tests may include:
+* [[Complete blood count]] (CBC) to check platelet levels.
+* [[Coagulation tests]] to assess blood clotting function.
+* [[Biopsy]] of affected tissue to examine for vasculitis or other abnormalities.
 == Treatment ==
-Treatment for purpura depends on the underlying cause. In some cases, no treatment is necessary and the spots will fade on their own. In other cases, treatment may involve medications to reduce inflammation or to treat the underlying disease.
+Treatment of purpura depends on the underlying cause. Options may include:
-== See also ==
+* [[Corticosteroids]] to reduce inflammation in cases of vasculitis.
-* [[Petechia]]
+* [[Immunosuppressive drugs]] for autoimmune causes.
-* [[Ecchymosis]]
+* [[Plasma exchange]] for TTP.
-* [[Hematoma]]
+* [[Intravenous immunoglobulin]] (IVIG) for ITP.
-[[Category:Skin conditions]]
+== Related pages ==
-[[Category:Blood disorders]]
+* [[Vasculitis]]
-[[Category:Vascular-related cutaneous conditions]]
+* [[Henoch-Schönlein purpura]]
+* [[Immune thrombocytopenic purpura]]
+* [[Thrombotic thrombocytopenic purpura]]
-{{stub}}
+[[Category:Dermatology]]
+[[Category:Hematology]]