Petechiae Rash
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Reviewed By:

Yukiko Ueda

Yukiko Ueda, MD (Dermatology)

Dr. Ueda graduated from the Niigata University School of Medicine and trained at the University of Tokyo Medical School. She is currently a clinical assistant professor at the Department of Dermatology, Jichi Medical University, and holds several posts in the dermatology departments at Kyoto Prefectural University of Medicine, Komagome Hospital, University of Tokyo, and the Medical Center of Japan Red Cross Society.

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Content updated on Jan 4, 2023

About the symptom

Skin petechiae are pinpoint, round spots that appear on the skin as a result of bleeding.

When to see a doctor

Seek professional care if you experience any of the following symptoms

  • Dark purple rash on lower limbs

  • Recent weight loss

  • Difficulty breathing / breathlessness

  • Violaceous / purpuric rash

  • Easy bruising

  • Swelling of the affected area

  • Vomiting of blood

  • Melena (black stools)

  • Gross hematuria

Possible causes

  • Purpura pigmentosa

    Purpura Pigmentosa Progressiva, also known as Progressive Pigmentary Dermatitis or Schamberg's Disease, is a chronic skin condition that causes discoloration of the dermis on the trunk, upper, and lower limbs. The exact cause is unknown, but it is caused by inflammation of tiny blood vessels called capillaries.

  • Cushing syndrome

    This condition is caused by excessive amounts of a hormone called cortisol. It may be caused by consumption of some steroid medications or the body producing too much cortisol.

  • von Willebrand disease (vWD)

    vWD is a blood disorder that impairs blood clotting. In people with vWD, a protein called von Willebrand factor either does not function properly or is insufficient. It's a genetic condition that occurs due to inheriting an abnormal gene that codes for the production of von Willebrand factor in the body.

  • Psoriasis (except for pustular psoriasis)
  • Sjogren syndrome
  • Immune thrombocytopenic purpura
  • IgA Vasculitis (Henoch-Schonlein Purpura)

Related serious diseases

  • Leukemia

    Leukemia is a cancer of the body's blood cell-forming tissues. Blood cells circulate in our bloodstream and are created and matured in the bone marrow and the lymphatic system. Leukemia involves white blood cells and lymphatic cells and has several types. The cancerous cells are produced in excess and do not function normally. Leukemias can be aggressive and cause symptoms or chronic and smolder for years.

  • Splenic infarction

Questions your doctor may ask about this symptom

Your doctor may ask these questions to check for this symptom

  • Do you have small red dots which look like bleeding under the skin?

  • Do you have dots on your fingers caused by bleeding under the skin?

Other Related Symptoms

Similar symptoms or complaints

Reviewed By:

Yukiko Ueda

Yukiko Ueda, MD (Dermatology)

Dr. Ueda graduated from the Niigata University School of Medicine and trained at the University of Tokyo Medical School. She is currently a clinical assistant professor at the Department of Dermatology, Jichi Medical University, and holds several posts in the dermatology departments at Kyoto Prefectural University of Medicine, Komagome Hospital, University of Tokyo, and the Medical Center of Japan Red Cross Society.

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