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Idiopathic Thrombocytopenic Purpura Clinical Presentation

  • Author: Michael A Silverman, MD, MD; Chief Editor: Gil Z Shlamovitz, MD, FACEP  more...
Updated: Jul 22, 2016


Focus on the symptoms of bleeding (eg, type, severity, duration) and on symptoms that may exclude other causes of thrombocytopenia. Elicit risk factors for HIV and systemic symptoms linked to other illnesses or to medications (eg, heparin, alcohol, quinidine/quinine, sulfonamides) that may cause thrombocytopenia.

Medications can be a common etiology for inducing thrombocytopenia, and patients should have their medications carefully reviewed. One study used three distinct methods to document drugs that may be associated with drug-induced immune thrombocytopenia (DITP).[1, 2] Approximately 1500 drugs are associated with thrombocytopenia, but, using this analysis, 24 drugs had evidence of causing thrombocytopenia by all three methods.

Address risk factors for increased bleeding, such as GI disease, CNS disease, urologic disease, or active lifestyle, as these may determine the aggressiveness of management.

Common signs, symptoms, and precipitating factors include the following:

  • Abrupt onset (childhood ITP)
  • Gradual onset (adult ITP)
  • Purpura
  • Menorrhagia
  • Epistaxis
  • Gingival bleeding
  • Recent live virus immunization (childhood ITP)
  • Recent viral illness (childhood ITP)
  • Bruising tendency

Limited data are available on the recurrent form of the disease. One study showed a 6% prevalence of recurrent ITP with most patients (69%) having only one recurrence. Though one third of patients had their recurrent episode within 3 months of their initial one, the remainder of patients had at least a 3-month interval between episodes.



Evaluate the type and the severity of bleeding and try to exclude other causes of bleeding. Seek evidence of liver disease, thrombosis, autoimmune diseases (eg, nephritis, cutaneous vasculitis, arthritis), and infection, particularly HIV.

Common physical findings include the following:

  • Nonpalpable petechiae, which mostly occur in dependent regions
  • Hemorrhagic bullae on mucous membranes
  • Purpura
  • Gingival bleeding
  • Signs of GI bleeding
  • Menometrorrhagia, menorrhagia
  • Retinal hemorrhages
  • Evidence of intracranial hemorrhage, with possible neurologic symptoms
  • Nonpalpable spleen: The prevalence of palpable spleen in patients with ITP is approximately the same as that in the non-ITP population (ie, 3% in adults, 12% in children).
  • Spontaneous bleeding when platelet count is less than 20,000/mm 3.


See the list below:

  • Immunoglobulin G (IgG) autoantibodies on the platelet surface
Contributor Information and Disclosures

Michael A Silverman, MD, MD Chairman, Department of Emergency Medicine, Virginia Hospital Center; Instructor of Emergency Medicine, Johns Hopkins University School of Medicine

Michael A Silverman, MD, MD is a member of the following medical societies: American College of Emergency Physicians

Disclosure: Nothing to disclose.

Specialty Editor Board

Francisco Talavera, PharmD, PhD Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Received salary from Medscape for employment. for: Medscape.

Jeffrey L Arnold, MD, FACEP Chairman, Department of Emergency Medicine, Santa Clara Valley Medical Center

Jeffrey L Arnold, MD, FACEP is a member of the following medical societies: American Academy of Emergency Medicine, American College of Physicians

Disclosure: Nothing to disclose.

Chief Editor

Gil Z Shlamovitz, MD, FACEP Associate Professor of Clinical Emergency Medicine, Keck School of Medicine of the University of Southern California; Chief Medical Information Officer, Keck Medicine of USC

Gil Z Shlamovitz, MD, FACEP is a member of the following medical societies: American College of Emergency Physicians, American Medical Informatics Association

Disclosure: Nothing to disclose.

Additional Contributors

Edward A Michelson, MD Associate Professor, Program Director, Department of Emergency Medicine, University Hospital Health Systems of Cleveland

Edward A Michelson, MD is a member of the following medical societies: American College of Emergency Physicians, National Association of EMS Physicians, Society for Academic Emergency Medicine

Disclosure: Nothing to disclose.

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