Petechiae purpura other forms of bleeding into the skin draco

Purpura, petechiae: Hemorrhages in the skin Hemorrhages are collections of blood in the ties that have escaped from blood vessels.

In contrast to an external bleeding, the blood does not escape outside the body, but remains inside the tie structures. If internal organs are affected by hemorrhages, these are not visible externally. Instead, symptoms often occur depending on the affected organ, as well as pain.

Due to the fact that blood penetrates into tie structures, swelling occurs in the affected areas. In this case, the leaked blood flows preferentially into spaces between different tie layers. The extent of the hemorrhage, and thus the size of the swelling, depends on the amount of blood that has leaked from the blood vessel.

Table of Contents

– Hemorrhages: Classification – What are the causes of hemorrhages? – What distinguishes a hematoma from erythema, wound hematoma and seroma??

Hemorrhages: Classification

In summary, all capillary hemorrhages in skin or mucous membrane layers are referred to as Purpura Designated.

Fresh hemorrhages are red in color. When the blood has clotted, the affected areas take on a purplish-bluish hue. During enzymatic degradation of blood components, especially hemoglobin, hemorrhages turn brown and green to faint shades of yellow or brown until they finally disappear completely. Depending on the size and shape of the hemorrhage, purpura are differentiated as follows:

Petechiae are punctiform hemorrhages in the skin layers about the size of a pinhead. In most cases many petechiae occur locally at once. Ecchymosis Are areal hemorrhages up to a maximum of coin size. Sugillations are about coin-sized hemorrhages into the skin. Suffusions are blurred, extensive hemorrhages that can also affect tie below the skin layers (subcutis). Hematomas are also referred to as a bruise or "blue mark". Hematomas can also occur in the subcutis. Are primarily caused by external force. Vibices are rarely occurring hemorrhages, which are visible in the skin in the form of stripes.

What are the causes of hemorrhage?

Hemorrhages are caused by small injuries of the blood capillaries in the skin.

Causes of pupura are generally diseases or the use of certain medications. Apart from hematomas, purpura rarely occurs as a result of external mechanical force. Especially disorders of blood clotting due to a lack of platelets or blood clotting factors can result in hemorrhages. Diabetes, vasculitides, infections, blood poisoning (sepsis), autoimmune as well as cancer diseases or old age and parchment skin also increase the risk for the occurrence of small vessel lesions. Medication can be used to treat purpura z.B. Caused by the use of cortisone, antibiotics, antiepileptic drugs, painkillers or blood thinners.

Hematomas generally occur after external violence (trauma). The appearance of hematomas in the skin or subcutis after trauma is usually harmless and heals completely after a few weeks. However, if hematomas develop after even light touch, this could indicate blood clotting disorders or other diseases. In this case, the cause should be medically clarified. Hematomas can also occur within the body, e.g.B. in the brain, abdomen, muscle or other organs. Then hematomas are markedly dangerous to life-threatening. Must be treated immediately in the hospital.

Petechiae next to a wound

What distinguishes a hemorrhage from erythema, wound hematoma and seroma? At first sight fresh bleedings can be seen. Erythema very similar from. Both lead to reddening of the skin.

A Erythema in contrast to purpura, results from increased blood flow due to inflammatory processes. So the blood does not come out of the blood vessel. A simple prere test reveals whether the skin discoloration is hemorrhage or erythema: In erythema, the reddish coloration of the skin can be pushed away as blood is forced out of the blood vessels. A few seconds later, the blood vessels fill up again and the redness returns. In the case of hemorrhage, the redness does not disappear when prere is applied to the area because the blood has clotted outside the blood vessels in the tie. A non-blanchable redness can also be a symptom of a decubitus ulcer.

From hematomas caused by external trauma, the Wound hematomas to distinguish. A wound hematoma occurs in connection with an already existing wound. In this case, the blood from the wound area flows into the neighboring tie and leads to an accumulation of blood there, the wound hematoma.

Contained in contrast to hemorrhage Seroma Instead of blood, other tie fluids such as lymph or wound fluid (exudate). Because the fluid in seromas tends to be pale or translucent, seromas are not discolored. Like hemorrhage, seroma results in swelling due to the entry of fluid into the tie. Unlike a hemorrhage, however, a seroma is rarely painful when prere is applied externally.

petechiae purpura other forms of bleeding into the skin draco

After studying biology at the Ruhr University in Bochum, Dr. Lorenz to the Dr. rer. nat. Since 2012, she has been in the medical-scientific department at Dr. Ausbuttel active, since 2018 also as head of this department as well as the research department.

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