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2. Petechia - Wikipedia

   en.wikipedia.org/wiki/Petechia

   A petechia (/ p ɪ ˈ t iː k i ə /; [1] pl.: petechiae) is a small red or purple spot (≤4 mm in diameter) that can appear on the skin, conjunctiva, retina, and mucous membranes which is caused by haemorrhage of capillaries. [2] [3] The word is derived from Italian petecchia 'freckle', of obscure origin. [1]

3. Erythema ab igne - Wikipedia

   en.wikipedia.org/wiki/Erythema_ab_igne

   Erythema ab igne (Latin for 'redness from fire') EAI, also known as hot water bottle rash, [2] is a skin condition caused by long-term exposure to heat (infrared radiation). [3] Prolonged thermal radiation exposure to the skin can lead to the development of reticulated erythema, hyperpigmentation, scaling, and telangiectasias in the

4. Purpura - Wikipedia

   en.wikipedia.org/wiki/Purpura

   Purpura (/ ˈ p ɜːr p jʊər ə / [1]) is a condition of red or purple discolored spots on the skin that do not blanch on applying pressure. The spots are caused by bleeding underneath the skin secondary to platelet disorders, vascular disorders, coagulation disorders, or other causes. [2]

5. Schamberg disease - Wikipedia

   en.wikipedia.org/wiki/Schamberg_disease

   Schamberg's disease is caused by leaky blood vessels near the surface of the skin, capillaries, which allow red blood cells to slip through into the skin. [3] The red blood cells in the skin then fall apart and release their iron, which is released from hemoglobin. [3] The iron causes a rust color and this accounts for the orange tint of the ...

6. Rash - Wikipedia

   en.wikipedia.org/wiki/Rash

   Red, itchy, scaly or oily rash; can also be weeping or leathery. Anywhere that came in contact with the irritant either directly or via transfer (e.g. from contaminated clothing.) Allergic purpura: Small red dots on the skin, or larger, bruise-like spots that appeared after taking medicine Anywhere Pityriasis Rosea

7. Erythema - Wikipedia

   en.wikipedia.org/wiki/Erythema

   Erythema (Ancient Greek: ἐρύθημα, from Greek erythros 'red') is redness of the skin or mucous membranes, caused by hyperemia (increased blood flow) in superficial capillaries. [1] It occurs with any skin injury, infection, or inflammation. Examples of erythema not associated with pathology include nervous blushes. [2]

8. Cherry angioma - Wikipedia

   en.wikipedia.org/wiki/Cherry_angioma

   Cherry angioma, also called cherry hemangioma [1] or Campbell de Morgan Spot, [2] is a small bright red dome-shaped bump on the skin. [3] It ranges between 0.5 – 6 mm in diameter and usually several are present, typically on the chest and arms, and increasing in number with age. [3] [4] If scratched, they may bleed. [5]

9. Port-wine stain - Wikipedia

   en.wikipedia.org/wiki/Port-wine_stain

   The area of skin affected grows in proportion to general growth. Port-wine stains occur most often on the face but can appear anywhere on the body, particularly on the neck, upper trunk, arms and legs. [2] [4] Early stains are usually flat and pink in appearance. As the child matures, the color may deepen to a dark red or purplish color. [2]