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:
- Viral infections:
- Bacterial infections, such as tuberculosis
- Parasitic infections, such as Lyme disease
- Mycoplasma, an usual bacteria that can cause pneumonia
- Partially treated bacterial meningitis
- Autoimmune disorders, such as systemic lupus erythematosus or sarcoidosis
- Cancer that has spread to the meninges
- Certain medications
Last reviewedMay 2014by Rimas Lukas, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.