Neuroborreliosis (Neurologic Lyme Disease)
What is Neuroborreliosis (Neurologic Lyme Disease)?
Neuroborreliosis is a complication of Lyme disease that affects your nervous system. It happens when Borrelia bacteria, spread by infected ticks, invade your brain, spinal cord, or peripheral nerves. This infection can cause inflammation in the protective layers around your brain, damage nerve pathways, or affect how your brain functions.
The condition develops in about 15 percent of people with untreated Lyme disease. It typically appears weeks to months after the initial tick bite. Early neurologic symptoms can start within days of infection. Late symptoms may develop months or years later if the infection goes unrecognized.
Neuroborreliosis can cause meningitis, which is inflammation of the membranes covering the brain and spinal cord. It can also lead to encephalitis, or brain inflammation. Peripheral neuropathy causes nerve damage in arms and legs. Radiculopathy affects nerve roots near the spine. Some people develop cognitive problems that affect memory and thinking.
Symptoms
- Severe headaches that don't respond to typical pain relief
- Facial palsy or drooping on one or both sides of the face
- Numbness, tingling, or shooting pains in arms or legs
- Neck stiffness and sensitivity to light
- Difficulty concentrating or memory problems
- Dizziness or vertigo
- Vision changes or blurred vision
- Ringing in the ears
- Sleep disturbances or fatigue
- Mood changes or irritability
Some people with early neuroborreliosis have mild symptoms that get dismissed as stress or fatigue. Others experience sudden and severe neurologic changes. The initial tick bite may have gone unnoticed, making diagnosis more difficult.
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Causes and risk factors
Neuroborreliosis is caused by Borrelia bacteria transmitted through the bite of infected blacklegged ticks. These ticks are also called deer ticks. The bacteria must typically stay attached to your skin for 36 to 48 hours to transmit infection. Once in your bloodstream, the bacteria can cross into your nervous system and cause inflammation.
Risk factors include spending time in wooded or grassy areas where ticks live. This is especially common in the Northeast, Mid-Atlantic, and Upper Midwest regions. Activities like hiking, camping, gardening, or outdoor work increase exposure. Not checking for ticks after outdoor activities raises infection risk. Delayed treatment of early Lyme disease allows bacteria to spread to the nervous system.
How it's diagnosed
Neuroborreliosis is diagnosed through a combination of clinical symptoms, patient history, and laboratory testing. Your doctor will ask about tick exposure and early Lyme symptoms like the characteristic bullseye rash. Blood tests that detect Lyme disease antibodies are the first step in diagnosis. These tests look for immune system proteins your body makes in response to Borrelia infection.
Rite Aid offers Lyme disease antibody testing as an add-on to our flagship health panel. This test can help identify active or recent infection. If blood tests suggest Lyme disease and you have neurologic symptoms, your doctor may recommend a spinal tap. This procedure tests cerebrospinal fluid for Lyme antibodies in the central nervous system. Positive results in both blood and spinal fluid confirm neuroborreliosis.
Treatment options
- Intravenous antibiotics like ceftriaxone for 14 to 28 days to treat nervous system infection
- Oral antibiotics such as doxycycline for less severe cases or as follow-up treatment
- Pain management with medications for nerve pain or headaches
- Physical therapy to help with muscle weakness or coordination problems
- Anti-inflammatory diet rich in vegetables, fruits, and omega-3 fatty acids
- Adequate sleep and stress management to support nervous system healing
- Gradual return to activity as symptoms improve
- Follow-up testing to monitor recovery and ensure infection has cleared
Need testing for Neuroborreliosis (Neurologic Lyme Disease)? Add it to your panel.
- Simple blood draw at your nearest lab
- Results in days, not weeks
- Share results with your doctor
Frequently asked questions
Neurologic symptoms can appear anywhere from a few days to several months after infection. Early neuroborreliosis often develops within 4 weeks of the initial tick bite. Late neurologic complications may not show up until months or even years later, especially if the original infection went untreated.
Most people recover fully with prompt antibiotic treatment. Early diagnosis and treatment within the first few weeks typically lead to complete recovery. Delayed treatment may result in lingering symptoms or permanent damage in some cases. Long-term nerve problems are rare but possible when infection goes untreated for months or years.
Lyme disease is the general infection caused by Borrelia bacteria from tick bites. Neuroborreliosis is a specific complication that occurs when the bacteria invade the nervous system. About 15 percent of people with untreated Lyme disease develop neurologic involvement. Neuroborreliosis requires more intensive treatment than early-stage Lyme disease.
Blood tests for Lyme antibodies are highly accurate when used correctly. They detect infection in about 70 to 80 percent of early cases and over 95 percent of later cases. For neuroborreliosis specifically, doctors also test cerebrospinal fluid for antibodies. Combining blood and spinal fluid results provides the most accurate diagnosis.
Yes, many people with neuroborreliosis never saw or felt the tick bite. Ticks are very small and their bites are painless. The nymph stage of blacklegged ticks is about the size of a poppy seed. You may also have missed the initial Lyme rash or never developed one at all.
Focus on anti-inflammatory foods that support nervous system health. Eat plenty of fatty fish like salmon for omega-3 fatty acids. Include colorful vegetables and berries rich in antioxidants. Add nuts, seeds, and olive oil for healthy fats. Avoid processed foods, excess sugar, and alcohol during recovery.
Most people receive intravenous antibiotics for 14 to 28 days. Your doctor determines the exact duration based on symptom severity and response to treatment. Some patients need oral antibiotics after IV treatment finishes. Full recovery of neurologic symptoms may take several weeks to months even after antibiotics end.
True reinfection with new Borrelia bacteria is possible if you get another tick bite. The original infection does not typically return after proper antibiotic treatment. Some people experience persistent symptoms that may be due to immune system changes rather than active infection. Regular tick prevention helps avoid reinfection.
Testing makes sense if you live in or visited tick-prone areas and have symptoms like facial palsy, nerve pain, or meningitis signs. Even without remembering a tick bite, testing can identify hidden Lyme infection. Blood tests are the first screening step. Talk to your doctor about whether testing is right for your symptoms.
Prevent tick bites by wearing long sleeves and pants in wooded areas. Use EPA-approved insect repellents containing DEET or picaridin. Check your entire body for ticks after outdoor activities. Remove attached ticks quickly with fine-tipped tweezers. Early treatment of Lyme disease prevents progression to neuroborreliosis.