Aseptic Meningitis


Meningitis occurs when the lining of the brain and spinal cord (meninges) becomes inflamed. Cerebrospinal fluid (CSF), a clear fluid that surrounds and protects the brain and spinal cord, has an increased number of white blood cells. Aseptic meningitis occurs when there are signs of meningitis without an identifiable disease-causing agent.

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The most common causes of aseptic meningitis are:

Risk Factors

Aseptic meningitis affects children and teens more than adults. Other factors that may increase your chance of developing aseptic meningitis include:

  • Being exposed to someone with a viral illness
  • The season—mostly occurs in late spring and summer
  • Working in a daycare or healthcare setting
  • Having a compromised immune system
  • Taking certain medications, such as non-steroidal anti-inflammatory drugs (NSAIDs) or medications injected directly into the CSF


Aseptic meningitis may cause:

  • Headache
  • Fever and chills
  • Stiff neck
  • General feeling of illness
  • Sore throat
  • Fatigue
  • Rash
  • Muscle or abdominal pain
  • Mental confusion
  • Sensitivity to light
  • Nausea or vomiting


Your doctor will ask about your symptoms and medical history. A physical exam will be done.

You may need to have samples taken of your bodily fluids. This can be done with:

Imaging tests can evaluate the brain and surrounding structures. This can be done with:


Talk with your doctor about the best treatment plan for you. Most cases of aseptic meningitis improve with time. Treatment options include:

  • Supportive care—Your doctor may recommend that you rest and drink plenty of fluids. You may need to be hospitalized to be monitored and to stay hydrated.
  • Medications—If specific causes of meningitis are suspected, your doctor may advise that you take:
    • Antivirals—for viral infection
    • Antibiotics—for bacterial infection
    • Antifungals—for fungal infection
    • Pain relievers—to relieve symptoms
    • Steroids—to reduce inflammation
  • In certain cases, your doctor may advise that you stop some medications.

Note: Aspirin is not recommended for children with a current or recent viral infection. Check with your doctor before giving your child aspirin.


To help reduce your chance of aseptic meningitis:

  • Wash your hands often, especially if you:
    • Are in close contact with a person who has an infection
    • Changed the diaper of an infant with an infection
  • If you work in a childcare or healthcare setting, clean objects and surfaces
  • Be sure all of your vaccinations are up-to-date


Please note, not all procedures included in this resource library are available at Allegiance Health or performed by Allegiance Health physicians.

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This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.

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