Can Lyme Disease Cause Depression and Anxiety?

Lyme disease is usually associated with symptoms like fatigue, joint pain, headaches, and neurological problems. But can Lyme disease also cause depression and anxiety?

The answer is more complicated than a simple yes or no.

Lyme disease can affect the nervous system in some people, and researchers have investigated psychiatric and cognitive symptoms associated with the infection. At the same time, living with a painful, exhausting, or disabling chronic illness can have a major effect on mental health—even without the infection directly causing depression or anxiety.

So if you have Lyme disease and you're experiencing changes in your mental health, it's important not to automatically assume “it's all Lyme.” But it's equally important not to dismiss legitimate physical symptoms simply because anxiety or depression is also present.

Can Lyme Disease Cause Depression?

Depression can occur in people who have Lyme disease, but that doesn't necessarily mean the Lyme infection is directly responsible for every case.

There are several possible connections.

First, Lyme disease can affect the nervous system. Neurological Lyme disease, or Lyme neuroborreliosis, is a recognized manifestation of Lyme disease.

Second, the experience of being chronically ill can itself contribute to depression.

Imagine dealing with months or years of:

• Persistent fatigue
• Pain
• Poor sleep
• Reduced ability to exercise
• Difficulty working
• Social isolation
• Uncertainty about your health
• Repeated medical appointments
• Feeling as though other people don't understand what you're experiencing

Those circumstances can have a profound psychological impact.

This distinction matters because depression occurring alongside Lyme disease doesn't automatically prove that Borrelia burgdorferi is directly producing the depression.

Research into the relationship between Lyme disease and psychiatric symptoms has produced mixed results. A 2025 literature review found that some studies have reported increased rates of depression, anxiety, sleep disturbances, and other mental-health symptoms among people with Lyme disease, while other studies have not found the same association.

The researchers concluded that there is currently no strong evidence establishing Lyme disease as a cause of long-term psychiatric disorders.

That distinction is important: an association between Lyme disease and depression doesn't necessarily prove that the infection itself directly caused the depression.

Source: PubMed: Neuropsychiatric Manifestations of Lyme Disease — A Literature Review

There is also evidence that people diagnosed with Lyme disease may experience mental-health problems at higher rates.

A large Danish study followed a nationwide population of nearly 7 million people, including more than 12,000 people diagnosed with Lyme borreliosis. Researchers found higher rates of mental disorders and affective disorders among people diagnosed with Lyme disease.

However, this type of observational research can't tell us exactly why that association exists. It doesn't establish that Borrelia directly causes depression or anxiety. Biological effects of illness, the psychological burden of being sick, pain, sleep disruption, and other factors could potentially contribute.

Source: PubMed: Lyme Borreliosis and Associations With Mental Disorders and Suicidal Behavior

Can Lyme Disease Cause Anxiety?

The relationship between Lyme disease and anxiety is similarly complicated.

Some patients with Lyme disease report anxiety, panic, mood changes, cognitive difficulties, and other neuropsychiatric symptoms.

But anxiety is also extremely common outside of Lyme disease.

Chronic illness can create plenty of reasons to become anxious.

You may worry about your symptoms, whether you'll recover, whether you'll be able to work, how much treatment will cost, or whether a new symptom means something is getting worse.

Physical symptoms can also reinforce anxiety.

For example, dizziness, heart palpitations, difficulty concentrating, fatigue, and sleep disruption can be frightening—even when anxiety wasn't what originally caused them.

This can create a feedback loop in which physical symptoms increase anxiety, and anxiety makes those physical symptoms even harder to cope with.

Lyme Disease Can Affect the Nervous System

It's important to establish one thing clearly: neurological Lyme disease is real.

According to the CDC, neurological symptoms can occur when Lyme disease bacteria affect the peripheral or central nervous system. Recognized manifestations include facial palsy, radiculoneuropathy—which can cause numbness, tingling, shooting pain, or weakness—and Lyme meningitis.

Source: CDC: Clinical Care and Treatment of Neurologic Lyme Disease

Lyme disease is caused by bacteria belonging to the Borrelia burgdorferi sensu lato complex and is transmitted through the bite of infected ticks.

In some cases, Lyme disease can involve the nervous system.

Recognized neurological manifestations can include problems such as:

• Facial nerve palsy
• Meningitis
• Radicular or shooting nerve pain
• Numbness or other sensory disturbances
• Other peripheral nervous system complications

Researchers have also investigated cognitive and psychiatric symptoms occurring in association with Lyme disease.

However, this doesn't mean that depression or anxiety by itself is evidence of neurological Lyme disease.

Symptoms like anxiety, depression, fatigue, and difficulty concentrating are extremely common and can have many different causes.

Chronic Illness Can Have a Major Effect on Mental Health

Sometimes we look for an incredibly complicated biological explanation when a simpler explanation may account for at least part of what someone is experiencing.

Being sick for a long time is hard.

A chronic illness can change almost every part of your life.

Someone who previously exercised regularly may suddenly struggle to walk around the block. A person who enjoyed a demanding career may no longer be able to work consistently. Social activities may disappear because simply getting through the day requires most of their available energy.

Then there's the uncertainty.

You may not know why you're sick, how long you'll remain sick, or whether the treatment you're trying will actually work.

It's not surprising that some people in this situation experience depression or anxiety.

That doesn't make their illness imaginary.

It makes mental health another part of the overall recovery picture that deserves attention.

Poor Sleep Can Make Depression and Anxiety Worse

Sleep is another factor that shouldn't be overlooked.

Poor sleep can affect:

• Mood
• Anxiety
• Concentration
• Memory
• Energy
• Pain tolerance
• Emotional regulation

And sleep disturbances can be common among people dealing with chronic illness.

This can create another vicious cycle:

Illness → poor sleep → worse symptoms → worse mental health → even worse sleep

If you're struggling with Lyme disease, depression, or anxiety, improving sleep may therefore be an important part of your broader recovery strategy.

The Two Extremes Lyme Patients Should Avoid

Mental health conversations within chronic illness communities sometimes drift toward two opposite extremes.

Extreme #1: “Everything is Lyme.”

Anxiety? Lyme.

Depression? Lyme.

Irritability? Lyme.

Every emotional change? Lyme.

That's too simplistic.

Someone can have Lyme disease and also develop depression or anxiety for reasons unrelated—or only indirectly related—to the infection.

Major clinical guidelines similarly recommend against routinely testing people for Lyme disease based solely on psychiatric illness, emphasizing the need for compatible clinical symptoms and exposure history.

Extreme #2: “It's just anxiety.”

This can be equally problematic.

Experiencing depression or anxiety doesn't mean someone's physical symptoms aren't real.

A person can have a legitimate physical illness and a mental health condition at the same time.

One does not invalidate the other.

The more useful question isn't necessarily:

“Is this physical or psychological?”

It may be:

“What factors are contributing to what I'm experiencing, and which of them can I address?”

Don't Ignore Depression or Anxiety While Treating Lyme

If you're experiencing significant depression or anxiety while dealing with Lyme disease, don't assume you have to wait until your Lyme treatment is finished before addressing your mental health.

Mental health can be treated as part of recovery rather than something separate from it.

Depending on your circumstances, that might include talking with your doctor or a qualified mental-health professional, improving sleep, spending more time outside, gradually returning to physical activity when appropriate, maintaining social connections, and addressing other factors contributing to stress.

The appropriate approach will depend on the individual.

Most importantly, struggling with mental health doesn't somehow make your physical illness less legitimate.

And treating Lyme disease doesn't mean depression or anxiety should automatically be ignored.

Lyme Recovery May Be Bigger Than Killing Bacteria

One of the biggest shifts I've made in the way I think about Lyme recovery is moving beyond the question:

“What kills Lyme?”

Of course, addressing an active infection can be important.

But after someone has been sick for months or years, there may be more pieces involved in getting their life back.

That can include:

• Sleep
• Mental health
• Nervous system function
• Nutrition
• Physical conditioning
• Movement tolerance
• Social connection
• Gradually rebuilding normal daily life

Recovery may therefore require looking at the person as a whole rather than focusing exclusively on the bacteria.

Join the Free 4-Day Lyme Recovery Experience

If you've been dealing with Lyme disease and feel overwhelmed by everything you're supposedly supposed to be doing, this is exactly what we'll be discussing during my free 4-Day Lyme Recovery Experience beginning September 21st.

We're going beyond simply asking “What kills Lyme?”

Instead, we'll talk about how to think through your recovery more strategically, identify the areas that may need attention, and start building a more complete recovery plan.

REGISTER FREE FOR THE 4-DAY LYME RECOVERY EXPERIENCE →

Frequently Asked Questions

Can Lyme disease cause depression?

Depression has been reported in people with Lyme disease, and researchers have studied possible psychiatric manifestations associated with Lyme disease. However, depression has many potential causes, and having both Lyme disease and depression doesn't necessarily prove that the infection directly caused the depression.

Can Lyme disease cause anxiety?

Anxiety can occur alongside Lyme disease, but it is not specific to Lyme disease. Neurological effects, chronic illness, pain, uncertainty, poor sleep, stress, and unrelated mental health conditions could all potentially contribute to anxiety.

Can Lyme disease affect your brain and nervous system?

Yes. Lyme disease can affect the nervous system in some patients. Neurological Lyme disease can cause recognized manifestations including facial nerve palsy, meningitis, and nerve pain.

Does anxiety mean my Lyme symptoms are psychological?

No. Having anxiety doesn't establish that physical symptoms are psychological. Physical illness and mental health conditions can occur simultaneously, and both should be appropriately evaluated.

Can poor sleep make Lyme symptoms and anxiety worse?

Poor sleep can negatively affect mood, concentration, energy, anxiety, and pain tolerance. Addressing persistent sleep problems can therefore be an important part of managing overall health during chronic illness.

Should I treat depression separately from Lyme disease?

Significant depression shouldn't simply be ignored while waiting for Lyme treatment to resolve it. Consider discussing depression or other mental health symptoms with an appropriate healthcare or mental-health professional so they can be addressed alongside your other health concerns.

The Bottom Line

Can Lyme disease cause depression and anxiety? Potentially—but the relationship isn't simple.

Lyme disease can affect the nervous system, and psychiatric symptoms have been investigated in people with Lyme disease. But chronic illness itself, poor sleep, pain, isolation, stress, and unrelated mental health conditions can also contribute to depression and anxiety.

That's why automatically attributing every mental health symptom to Lyme can be just as problematic as dismissing someone's physical illness because they're anxious or depressed.

A better approach is to consider the entire picture—and address both physical and mental health as part of recovery.

Medical Disclaimer: This article is provided for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. It is not a substitute for individualized medical or mental-health care. If you are experiencing depression, anxiety, or other concerning symptoms, speak with an appropriate healthcare professional.