Neurological Lyme disease is Lyme infection involving the nervous system, including the nerves and spinal cord, and sometimes the brain. It can cause facial droop, nerve pain, brain fog, and new depression or anxiety. A normal brain MRI and a negative standard blood test do not rule it out. The infection inflames the nervous system in ways these standard tests can miss.
A normal brain MRI helps rule out causes like a tumor or a stroke. It cannot rule out neurological Lyme disease. Lyme inflames the nervous system in a way a standard scan is not built to see. A clean MRI can send someone back to years of specialists who keep finding nothing.
The bacteria behind Lyme disease can reach the brain, the spinal cord, and the peripheral nerves. When they do, the symptoms can look like stress, perimenopause, early dementia, or multiple sclerosis. They can also look like depression or anxiety, so the referral is often to psychiatry rather than to anyone looking for an infection. Many people leave with a normal scan, a negative standard test, and no treatment for what is driving how they feel.
If your scans and standard labs are normal but your symptoms are not, the workup may have missed the problem, not ruled it out. Neurological Lyme often causes inflammation and nerve dysfunction that a standard MRI may not detect.
If you have been told every unexplained symptom is chronic Lyme, that deserves a careful second read too. Cognitive and mood symptoms are real, but they are not specific to Lyme, and a confident label is not a confirmed cause. Neurological Lyme disease is real, documented, and treatable, and it can also be over-applied. That is why it needs a clinician who reads the whole picture rather than a single scan or test.
Neurological Lyme is Lyme that has reached the nervous system, the nerves, the spinal cord, and sometimes the brain. Much of the damage comes from inflammation, the immune system's reaction to the infection, though the bacteria can affect nerve tissue directly too. That is part of why the symptoms can come and go, and move from one part of the body to another.
Doctors call it Lyme neuroborreliosis. After a tick transmits the bacteria, they can spread from the skin to the nerves and to the tissue around the brain and spinal cord.
Early neurological Lyme shows up in the first weeks to months. It tends to appear as facial palsy, as inflammation around the brain, or as painful nerve-root inflammation. Late involvement is less common and can affect the brain and peripheral nerves more broadly. In the United States, facial palsy is the most common sign. In Europe, painful nerve-root inflammation is more typical, because a different species of the bacteria predominates there.
Neurological Lyme has no single signature symptom. Depending on which nerves it inflames, it can show up as a drooping face, numb or burning limbs, brain fog, or new depression and anxiety.
The most recognized sign is facial palsy. One or both sides of the face droop suddenly, when the bacteria inflame the facial nerve. It can appear with no rash, no remembered tick bite, and a negative standard test. In a tick-heavy region like the mid-Atlantic, facial palsy with no clear cause is a reason to consider Lyme.
These can appear weeks to months after the tick bite. In late, untreated disease, chronic neurological symptoms can begin months to years later. Many people never connect them to a bite they barely remember, or one they never saw. The cognitive and mood symptoms are real, and they are also common to many conditions. They point toward a careful evaluation, not a self-diagnosis.
Yes. Brain fog is the symptom patients report most, and large studies tie a Lyme diagnosis to higher rates of mood problems. The findings need care in both directions.
Two large Danish studies frame the question. The first, of nearly seven million people, found that those with a Lyme diagnosis had higher rates of mood disorders. In the first years after diagnosis, they also had higher rates of suicidal behavior. The absolute risk stayed low, and the study could not prove Lyme caused the difference, but the link was real. The second, of patients with confirmed nervous-system Lyme, found no overall rise in psychiatric illness over long-term follow-up. Prescriptions for anxiety and sleep did rise in the first year.
Both are from Denmark, where Lyme comes from somewhat different bacteria than in the US. The exact numbers may not map perfectly onto patients here. They are still the largest studies on the question. A Lyme diagnosis is linked to more mood symptoms. Confirmed neuroborreliosis, on current evidence, does not look like a major driver of long-term psychiatric illness. The mood symptoms are real and worth treating seriously, and they are not, on their own, proof of Lyme.
Brain fog is what patients describe more than anything else, and researchers at Johns Hopkins treat it as real and tied to brain inflammation. Standard cognitive tests are not always sensitive to it. The fog can be disabling even when the score comes back normal, because the test is not built to capture this kind of problem.
When Lyme treatment clears the infection but symptoms remain, another tick-borne infection is often the missing piece. In our practice, we regularly see DMV patients carrying more than one infection alongside Lyme. A few share the same tick that carries Lyme. Others are carried by different ticks common across DC, Maryland, and Virginia. The table below covers the ones present or rising here. Each row notes how often that infection reaches the nervous system. Most are uncommon at the neurological level. But when the Lyme picture does not add up, they are worth ruling in or out.
| Infection | How it is carried | How it shows up (neurological and systemic) |
|---|---|---|
| Babesia | Same tick as Lyme | Mostly systemic: drenching night sweats, chills, and air hunger. True neurological symptoms are rare, but serious when they happen. |
| Bartonella | Usually fleas or cat scratches, not ticks | One clinicians often consider when neuropsychiatric symptoms stand out: anxiety, agitation, mood swings, sometimes rage or panic. |
| Anaplasma | Same tick as Lyme, rising in the region | Usually a flu-like fever with low blood counts. Neurological effects are uncommon and usually peripheral, such as nerve pain or a cranial-nerve palsy. |
| Ehrlichia | Lone Star tick, common and spreading in the DMV | A flu-like fever that can reach the brain if treatment is delayed: confusion, meningitis, or seizures. |
| Borrelia miyamotoi | Same tick as Lyme, often missed | A relapsing fever with high temperature, chills, and headache. Nervous-system involvement is uncommon but documented. A standard Lyme test does not detect it. |
| Rocky Mountain spotted fever | American dog tick, found in the mid-Atlantic | High fever, headache, and often a rash. Can affect the brain in severe cases. Serious and time-sensitive. |
| Powassan virus | Same deer tick as Lyme, rare here and rising regionally | A virus, so antibiotics do not treat it. Rare, but among the most serious neurologically: acute brain inflammation, with lasting effects in many survivors. |
Most neurological complications above are uncommon. Present or rising in DC, Maryland, and Virginia.
Most of these overlap with Lyme on the vaguest symptoms: fatigue, brain fog, and headache. That overlap is why testing beats guessing. The research on Bartonella and mood is still early, so it is a reason to test, not to assume. The same caution applies to the rarer infections here. Present in the region does not mean likely in any one person. When the Lyme picture does not add up, another infection is often what the standard workup missed. We go deeper in our guide to testing for Babesia and Bartonella.
A normal brain MRI is common with neurological Lyme, and it does not rule the infection out. The inflammation it causes often leaves no structural mark for a standard scan to find.
A standard MRI is built to catch structural problems, like tumors, strokes, and large lesions, and it is excellent at that. Neurological Lyme more often produces inflammation and nerve involvement that form no structural lesion. The scan reads normal even when the nervous system is not.
For years, small white-matter spots on an MRI were sometimes read as a sign of Lyme. A 2024 study tested that idea with precise MRI measurements. Those spots turned out to be no more common in people with neurological Lyme than in healthy people the same age. The finding cuts both ways: an MRI cannot confirm neurological Lyme, and a clean MRI cannot rule it out. The scan's real job is to exclude other causes, like multiple sclerosis or a tumor. We cover this in more depth in our guide to Lyme and brain MRI findings.
Researchers can see Lyme's effect on the brain with advanced imaging. Studies at Johns Hopkins have used specialized PET and functional MRI scans that detect inflammation and altered brain activity in Lyme patients. Those are research tools. You cannot order them at a standard imaging center, so their absence from your file does not mean you are well.
Some people carrying a diagnosis of MS, Parkinson's, or early dementia turn out to have Lyme instead. Ruling it out before settling on one of those diagnoses is a reasonable step, especially where tick exposure is common.
Lyme has been called the great imitator. Its symptoms, and even its MRI appearance, can overlap with multiple sclerosis. Case reports describe patients worked up for MS, Parkinson's, or cognitive decline who later turned out to have Lyme. A 2025 case series documented older adults whose neurological Lyme first looked like dementia, parkinsonism, or a tremor disorder. If you are trying to tell whether your symptoms are Lyme or something else, we compare it with MS, fibromyalgia, and chronic fatigue in this guide.
None of that means Lyme causes MS or Parkinson's. The research does not support that. It means the two can be confused, and confirming or excluding Lyme is worth doing before a lifelong diagnosis is accepted. The caution runs the other way too. Most people with MS or Parkinson's do not have Lyme. Treating an established diagnosis as if it must be Lyme can send someone down the wrong path. The goal is an honest evaluation, not a swap of one assumption for another.
No single blood test can confirm neurological Lyme. It is read from the whole clinical picture: your symptoms, your history of tick exposure, and testing matched to your stage.
The standard two-tier blood test is the usual starting point, and it has real limits here. It looks for antibodies, not for Lyme in the nervous system, so a normal result cannot tell you whether the infection is active there. A negative standard test does not rule out neurological Lyme. The CDC says a test can read falsely negative in the first weeks, because antibodies take time to build. It also says a positive result can linger for years, so the test cannot tell an active infection from a past one. Reading a negative result as an all-clear is how cases get missed.
In the right clinical picture, spinal-fluid testing can help confirm the infection has reached the nervous system. It is one piece of the workup, not a single yes-or-no test. It looks for inflammation, and for Lyme antibodies made inside the nervous system rather than in the blood. Newer markers are moving through research. Two are a chemokine called CXCL13 and a nerve-injury marker called neurofilament light chain. In a 2025 study, a spinal-fluid protein pattern read by machine learning told neuroborreliosis apart from other causes with high accuracy. None is a finished, standalone test yet.
Our approach starts from one principle: no single result outweighs the full picture. We read the symptoms, the timing, and the exposure together. When it is warranted, we use testing that is more sensitive than the standard two-tier panel. Some of it catches antibodies the standard test misses, and some looks for the infection more directly. That fuller picture can also point away from Lyme, toward a better answer.
The short antibiotic course that resolves an early Lyme infection does not resolve everyone. How long the infection has been in the nervous system changes the treatment. A new case and a years-old one are not treated the same way.
Caught early, neurological Lyme usually responds to a standard course of antibiotics, oral for most presentations and intravenous for more serious central-nervous-system involvement. Treatment works best the sooner it starts, and for many people, that resolves it.
Some people stay sick long after standard treatment ends. In one long-term study, about 14 of every 100 people treated for Lyme still had symptoms like fatigue, pain, and brain fog months later. Among people who never had Lyme, it was about 4 in 100 (Aucott 2022). We prescribe the antibiotics conventional medicine would, and we do not stop there. We add medical-grade supplements and other adjunctive support to address the inflammation and symptoms these patients carry. We build the plan around how long the infection has persisted and what has already been tried.
If you spend time outdoors in DC, Maryland, or Virginia, you live in one of the highest tick-exposure regions in the country. Exposure is common here, and neurological Lyme comes with it.
Johns Hopkins runs one of the world's leading Lyme research centers in Baltimore. Much of the science on neurological Lyme is being done in this region. For patients here with unexplained neurological symptoms, a clinician who knows the full tick-borne picture, including the co-infections above, is a practical advantage. In a high-exposure region, a clean standard workup is a weaker all-clear than it sounds.
One normal scan and one negative standard test are not an answer. Read on their own, they are a single data point, and treating them as the end of the search is how long-standing cases slip through.
A second opinion reads everything together: what you feel, when it started, where you may have been exposed, and the tests that fit your stage. Done well, it can find neurological Lyme that a standard workup missed. It can also conclude, just as readily, that Lyme is not the cause, and point you toward what is.
A complimentary Discovery Call is where every Indigo patient starts. It is a 20-minute phone call, and a team member walks through your symptom history, your past testing, and what you have already tried. You come away with a clear read on whether your case is one we can help with, and what a fuller workup would look for. No cost, no commitment, just a straight answer on whether this is worth pursuing.
This content is provided by Indigo Integrative Health Clinic for educational purposes only. It does not constitute medical advice, a diagnosis, or a treatment recommendation, and does not establish a provider-patient relationship. Individual health conditions vary — information presented here may not apply to your specific situation. Always consult a qualified, licensed healthcare provider before making decisions about your health, medications, supplements, or treatment plan.
Hashimoto's is diagnosed by combining findings, not one test: thyroid antibodies (TPO, sometimes thyroglobulin), thyroid function (TSH and free T4), symptoms, and often an ultrasound. A normal TSH does not rule it out, and a low-positive antibody is not always disease. Found early, before the gland is damaged, there is the best chance to protect it and feel better.
There is no single Hashimoto's diet, but a few moves have real evidence. Correct the nutrient gaps you can measure, like iron, selenium, and vitamin D. Get your iodine to the right level, which takes an assessment, not one test. And cut a food only for a real reason, like a positive celiac test or too much iodine. Assess first, then personalize.
Lyme disease shares key symptoms with fibromyalgia, multiple sclerosis, and chronic fatigue syndrome, so it can be mistaken for any of them. It is also over-diagnosed in people who do have one of those conditions. The honest answer is that Lyme is worth confirming or ruling out with a knowledgeable clinician, not assumed in either direction.
Hours of Operation
Monday - Friday
9am - 5pm
