Meningitis: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 23, 2026.
What kind of doctor treats Meningitis?
An infectious disease doctor, who treats infections, or a neurologist, who treats brain and nerve problems, usually treats meningitis in a hospital. Go to the emergency room right away if you think you have it. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What is meningitis?
Meningitis is swelling of the lining of the brain and spinal cord. This lining is called the meninges. Most cases in the U.S. are caused by a virus. Bacteria, parasites, and fungi can also cause it. Bacterial meningitis is rare but can be deadly. It can cause stroke, hearing loss, and lasting brain damage. Viral meningitis is rarely life threatening.
Symptoms
Meningitis often starts like the flu. It develops over one to two days. Signs can include:
- Sudden fever
- Severe headache
- Nausea or vomiting
- Double vision
- Sensitivity to bright light
- A stiff neck
- Confusion
A rash can appear in some forms of the disease. Babies may not show the usual signs. Instead, they may be slow, cranky, or sick to their stomach. They may feed poorly or have a bulging soft spot on the head.
Causes and who gets it
Most viral meningitis is caused by enteroviruses, which are common germs. This type most often affects children and adults under 30. The most common and serious form of bacterial meningitis is pneumococcal meningitis. Meningococcal meningitis is also bacterial. It is very contagious. A fungus called Cryptococcus can cause meningitis. It mostly affects people with weak immune systems. Not all meningitis comes from infection. Some medicines and autoimmune diseases can cause it. Anyone can get meningitis. A weak immune system raises the risk. Babies and people in dorms or barracks are at higher risk of meningococcal meningitis. So are travelers to places where it is common. Some bacterial forms spread by kissing, coughing, or sharing cups or toothbrushes. Children who missed routine vaccines are at higher risk of some bacterial types.
How doctors diagnose it
Your doctor will ask about recent travel, insect bites, and contact with sick people. You will also have an exam. You cannot tell if you have bacterial or viral meningitis by how you feel. A lumbar puncture, also called a spinal tap, takes a sample of the fluid around the brain. Blood tests and a CT or MRI scan of the head may also be done. Finding the cause matters because treatment depends on it.
Treatment
Bacterial meningitis is a medical emergency. It needs treatment as soon as possible. Antibiotics treat bacterial meningitis. Early treatment can greatly lower the risk of dying. Hospital care can also include fluids through a vein. Other medicine can treat brain swelling and seizures. Antibiotics do not work on viruses. Viral meningitis needs no specific treatment. Herpes meningitis may be treated with antiviral medicine. Fungal meningitis is treated with antifungal medicine through a vein. People with only a headache, fever, and stiff neck may get better in two to four weeks. In serious cases, meningitis can cause hearing loss, blindness, brain damage, and seizures.
When to see a doctor
Call 911 or go to the emergency room if you think you or your child has meningitis. Warning signs are sudden fever, severe headache, stiff neck, vomiting, or confusion. In babies, watch for poor feeding, sleepiness, crankiness, or a bulging soft spot. Anyone who may have meningitis should call a doctor or go to the hospital right away. Close contacts of someone with meningococcal meningitis should receive antibiotics.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. Meningitis needs emergency care. These doctors cannot replace the hospital. They can answer vaccine questions and help with follow-up care.
Common questions
Is meningitis contagious?
Some types are. Some forms of bacterial meningitis are contagious. They can spread through contact with saliva, nasal discharge, or feces. The viruses that often cause viral meningitis spread through direct contact with an infected person or object.
Is viral meningitis serious?
Viral meningitis is rarely life threatening. People with only headache, fever, and stiff neck may recover in two to four weeks.
Can meningitis be prevented?
Some types can be prevented. Vaccines are available to prevent three kinds of bacterial meningitis. Washing your hands often with soap and water also helps.
Sources
- MedlinePlus - Meningitis
- National Institute of Neurological Disorders and Stroke - Meningitis
- Centers for Disease Control and Prevention - About Meningitis
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
