- Sudden high fever, severe headache, and neck stiffness can be warning signs of meningitis.
- Confusion, trouble concentrating, and sensitivity to light or sound may signal a serious infection.
- In babies, constant crying, lethargy, a swollen soft spot, seizures, or a red rash need urgent medical attention.
Meningitis symptoms include high fever, severe headache, neck stiffness, and difficulty lowering the chin to the chest, and may also involve confusion, sensitivity to light, and nausea. These symptoms can appear quickly and may worsen within a few days, especially in more severe cases.
Meningitis is an inflammation of the membranes surrounding the brain and spinal cord, caused by viruses, bacteria, fungi, parasites, or noninfectious factors like head trauma. The type of infection influences how meningitis symptoms develop and how serious they can become.
Meningitis symptoms require prompt medical evaluation, as diagnosis is confirmed through tests like lumbar puncture and imaging exams. Treatment is done in the hospital with IV medications such as antibiotics or antivirals, and prevention includes vaccination and hygiene measures.
Symptoms of meningitis
The most common meningitis symptoms are:
- Sudden high-grade fever
- Headache that does not resolve
- Nausea and vomiting
- Neck pain and difficulty moving the neck
- Dizziness and difficulty concentrating
- Confusion
- Inability to lower your chin to your chest
- Sensitivity to light and sound
- Drowsiness and fatigue
- Loss of appetite and not feeling thirsty
Symptoms of meningitis usually appear 3 to 4 days after infection, but they can develop anytime between 2 and 10 days after exposure to the infectious agent.
According to the World Health Organization (WHO), the most common meningitis symptoms include stiff neck, high fever, sensitivity to light, confusion, headaches, and vomiting.
Symptoms in babies
Babies under the age of two typically present with a high-grade fever, as well as symptoms like:
- Constant crying
- Irritability
- Drowsiness
- Lethargy
- Loss of appetite
- Body and neck stiffness
In babies under one year with soft fontanels, the head may appear swollen, resembling a lump caused by a bump. Meningococcal meningitis can also lead to a red rash on the body, as well as seizures and paralysis.
Risk factors
People at higher risk for meningitis often have weakened immune systems, either due to age (such as infants and older adults) or chronic health conditions.
When the immune system is less effective, it becomes harder for the body to fight off infections, increasing the likelihood of inflammation in the meninges and the development of meningitis.
Confirming a diagnosis
The initial diagnosis of meningitis begins with an evaluation of signs and symptoms. A healthcare provider may ask you to perform certain neck movements and check whether they cause pain or discomfort, as neck stiffness is a common feature in nearly all cases of meningitis.
To confirm the diagnosis, a provider usually orders a cerebrospinal fluid (CSF) culture, obtained through a lumbar puncture (spinal tap). The sample is then analyzed in the lab to check for bacteria, viruses, parasites, or fungi that could cause inflammation of the meninges.
The provider may also order additional blood and urine tests, as well as imaging studies like a CT scan or MRI.
Treatment options
Meningitis treatment is carried out in a hospital setting using intravenous (IV) medications. Depending on the cause of the infection, the doctor may prescribe IV antibiotics, antifungals, antiparasitic drugs, or antivirals.
Hospital care is essential to allow continuous monitoring of vital signs, which helps prevent complications and assess how well the treatment is working. It also enables timely adjustment of medication doses to ensure the infection is fully eliminated.
Prevention measures
The best way to protect yourself from meningitis is to stay up to date with vaccination. According to the CDC, meningococcal vaccines are recommended for all preteens and teens, as well as for children and adults at increased risk for meningococcal disease.
Regular handwashing and maintaining clean, well-ventilated environments can also help prevent the spread of meningitis.