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Bartonella

Cause #24 of 64 · Autoimmune & Infectious

Consensus: High for acute infection; Controversial for chronic symptom attribution

Overview

Bartonella is the 'stealth infection' - it causes bizarre neuropsychiatric symptoms (rage, anxiety, brain fog, depression) that get diagnosed as mental health conditions for years before anyone considers infection. The hallmark sign: 'shin streaks' - red/purple stretch-mark-like lines on the body that are NOT stretch marks. Standard testing catches only ~50% of cases. If you have brain fog + unexplained anxiety/rage + cat/flea exposure → test for Bartonella.

You've been diagnosed with anxiety and depression. The medications aren't working. But you also have unexplained rage, bizarre neuropsychiatric symptoms, and... do you have cats? Let's look for the infection hiding behind your diagnosis.

1. 1. THE SHIN STREAK CHECK: Take off your pants and look at your shins, thighs, abdomen, and back in a mirror. Do you see red, purple, or pinkish lines that look like stretch marks but AREN'T where stretch marks would be? These 'shin streaks' are caused by Bartonella invading blood vessels. This visual sign has led to diagnosis after years of misdiagnosis. Source: Breitschwerdt, Pathogens 2023
2. 2. Bartonella causes psychiatric symptoms that get diagnosed as mental illness. Rage attacks. Anxiety out of proportion to situation. Insomnia. Cognitive dysfunction. These are documented Bartonella symptoms - not character flaws or primary psychiatric conditions. Source: Breitschwerdt clinical research
3. 3. THE CAT/FLEA HISTORY: Have you ever been scratched by a cat? Bitten by a flea? Had a cat with fleas? Even years ago? Bartonella henselae (cat scratch disease) can become chronic. Fleas also transmit it. Ticks too. Write down your exposure history. Source: CDC Bartonella guidance
4. 4. Standard testing catches only ~50% of cases. The typical IFA antibody test has poor sensitivity for chronic Bartonella. Negative standard testing does NOT rule it out. You need specialized testing from labs like Galaxy Diagnostics. Source: Galaxy Diagnostics clinical data
5. 5. THE RAGE PATTERN: Do you have sudden, intense rage that feels disproportionate to the trigger? Rage that surprises you? That feels almost like it's 'not you'? This specific rage pattern is reported repeatedly in Bartonella infections. Track episodes for 2 weeks. Source: Breitschwerdt clinical observations
6. 6. Bartonella can cause small fiber neuropathy. Burning sensations. Tingling. Temperature dysregulation. POTS symptoms. If you have autonomic dysfunction plus neuropsychiatric symptoms, Bartonella should be on the list. Source: Maggi et al., PLOS ONE 2016
7. 7. THE FOOT CHECK: Look at your feet right now. Are they mottled (patchy red/white)? Purple when you stand? Do they burn? Bartonella causes vasculitis (blood vessel inflammation). Visible circulation changes are a clue. Source: Clinical observation
8. 8. 8 psychiatric medications failed before someone considered autism + infection. The 2023 Neurology case report describes a patient who cycled through 8 different psychiatric drugs over years. Proper diagnosis (autism + ADHD + co-infections) led to rapid improvement. Source: Neurology 2023 case report
9. 9. Write this down for your doctor: 'I want Bartonella testing - Galaxy Diagnostics ePCR if available. Standard IFA has only ~50% sensitivity. I have [cat exposure/shin streaks/unexplained neuropsychiatric symptoms].' Source: Clinical guidance
10. 10. Bartonella treatment is a marathon: 4-6 months minimum. Combination antibiotics (typically azithromycin + rifampin OR doxycycline + rifampin) for months. Expect Herxheimer reactions. Don't stop when you feel worse at first - that means it's working. Source: Breitschwerdt treatment protocols
11. 11. THE CO-INFECTION QUESTION: Do you also have joint pain? Profound fatigue? Night sweats? Bartonella often co-occurs with Lyme and Babesia. If one tick-borne infection is found, test for all of them. Source: Krause et al., PLoS One 2014
12. 12. Cats can transmit Bartonella without scratching. Cat saliva contains the bacteria. Licking wounds, grooming, or even sleeping with cats can transmit. Young cats and flea-infested cats are highest risk. Source: CDC cat scratch disease
13. 13. Finding the diagnosis brings relief, not despair. Many people diagnosed with chronic Bartonella after years of psychiatric treatment describe relief - finally understanding why medications didn't work. Infection is treatable. The odyssey ends. Source: Patient experience

Quick Win

Look at your body for 'shin streaks' - red, purple, or pinkish stretch-mark-like lines anywhere on the body (typically shins, abdomen, thighs, back). These are NOT stretch marks - they're caused by Bartonella invading endothelial cells in blood vessels. Also ask: cat scratch history? Flea exposure? Unexplained neuropsychiatric symptoms (especially anxiety/rage out of proportion to situation)?

• Cost: Free
• Time to effect: Immediate (recognition)
• Source: Breitschwerdt, Pathogens, 2023 - Bartonella and neuropsychiatric disease

Interventions

Lifestyle

• Flea/Vector Prevention
  Treat pets for fleas monthly. Flea-proof home environment. Tick prevention if outdoors (see Lyme #23).
  Cost: $
• Anti-Inflammatory Diet + Stress Management
  Same as neuroinflammation (#01). Bartonella treatment is long (4-6+ months) - you need a sustainable foundation.
  Cost: $

Investigation

• Bartonella Testing
  • Standard IFA (Bartonella henselae + quintana) - only ~50% sensitive
  • Galaxy Diagnostics ePCR (enrichment PCR) - most sensitive test available
  • Triple draw blood culture (Galaxy)
  • Look for: lymphadenopathy, liver/spleen granulomas, shin streaks, abnormal VEGF
  
  Interpretation: Negative standard testing does NOT rule out Bartonella. Galaxy ePCR is the gold standard but expensive. Clinical diagnosis supported by response to treatment.
  Cost: $$-$$$

Medical

• Prolonged Combination Antibiotics
  Minimum 4-6 months: Azithromycin + Rifampin, OR Doxycycline + Rifampin. Rifampin penetrates intracellular compartments where Bartonella hides. Expect Herxheimer reactions. Treatment may need extension based on response.
  Evidence: Moderate - no large RCTs for chronic Bartonella; treatment based on clinical experience and case series
  Note: Bartonella treatment is marathon, not sprint. 4-6 months minimum, often longer.

Supplements

• NAC (biofilm disruption)
  Dose: 600mg 2x daily - same rationale as Lyme
  Adjunct to antibiotics. Disrupts bacterial biofilms that protect Bartonella from treatment.

Support This Week

• Body: Gentle movement only - listen to your body. If activity worsens symptoms the next day, reduce intensity. Rest is an active intervention, not failure.
• Food: Eat a proper meal with protein, vegetables, and good fat (olive oil, nuts, avocado). Skip the ultra-processed snack. One meal upgrade today.
• Water: Drink a glass of water now. Keep a bottle visible. Aim for pale yellow urine. Don't overthink it - just drink regularly.
• Environment: Open a window for 15 minutes. Fresh air exchange reduces indoor pollutants. If outdoors is bad (pollution, pollen), use a HEPA filter.
• Connection: Reach out to one person today. Text, call, walk together. Isolation worsens every cause of brain fog. Connection is a biological need, not a luxury.
• Tracking: Rate your brain fog 1-10 each morning for 7 days. Note sleep quality, food, exercise, stress. Patterns emerge within a week.
• Avoid: Don't change everything at once. One new habit per week. Don't compare your progress to others. Don't spend money on supplements before nailing sleep, food, and movement.

Dietary Pattern

Gentle Anti-Inflammatory (Recovery-Adapted)

For people who are too fatigued, nauseous, or overwhelmed for complex dietary changes. The minimum effective dose.

Core: Small, frequent, simple meals. Broth/soup if appetite is poor. Add ONE portion of oily fish per week. Add berries when tolerable. Reduce (don't eliminate) ultra-processed food. Hydrate. Don't force large meals.

Same as Lyme - anti-inflammatory eating, adequate nutrition. No Bartonella-specific dietary protocol exists in the evidence base.

Community Insights

What Helped

• Galaxy Diagnostics ePCR testing - standard IFA only catches about 50%
• Combination antibiotics for 4-6+ months - this is a marathon, not a sprint
• Recognizing shin streaks as diagnostic clue - red/purple lines that aren't stretch marks
• Treating alongside Lyme co-infections simultaneously

What Didn't Help

• Short antibiotic courses - Bartonella is intracellular and requires prolonged combination therapy
• Being diagnosed with anxiety or depression when neuropsychiatric symptoms were infection-driven
• Standard blood cultures (Bartonella grows too slowly for standard culture)

Surprises

• Neuropsychiatric symptoms (rage, anxiety, insomnia) can be the PRIMARY presentation - not just cat scratch fever
• Small fiber neuropathy caused by Bartonella - explains burning, tingling, autonomic dysfunction
• Can trigger POTS - vascular inflammation affects autonomic nervous system

Common Mistakes

• Not considering Bartonella if you've never been scratched by a cat - fleas and ticks also transmit it
• Expecting quick resolution - 4-6 months minimum treatment, often longer
• Not treating alongside Lyme when co-infected

Tip: If you have brain fog + unexplained rage/anxiety + cat or flea exposure: look at your body for shin streaks. Red/purple lines that aren't stretch marks. This one visual clue has led to diagnosis for many people who spent years in psychiatric treatment for what was actually an infection.

Holistic Support

• Morning sunlight
  Evidence: Strong - resets circadian clock, improves mood, supports vitamin D.
  How: 10-15 min outside within 1 hour of waking. No sunglasses needed.
• Cyclic sighing breathwork
  Evidence: Strong - Balban Cell Rep Med 2023.
  How: 5 min daily. Double inhale nose, long exhale mouth.
• Nature exposure
  Evidence: Moderate - cortisol reduction, attention restoration.
  How: 20 min in green space weekly minimum.

Safety Notes

• Driving: Neuropsychiatric symptoms (rage, cognitive impairment) may affect driving safety. Assess your own state. Not a reportable condition unless causing significant impairment.
• Work: Chronic infection symptoms may require workplace accommodations. Documentation from treating physician helpful. Not a recognized disability category but symptoms may qualify.
• Pregnancy: Bartonella treatment (doxycycline, rifampin) contraindicated in pregnancy. Discuss with infectious disease specialist if pregnant or planning pregnancy while infected.

Why These Causes Connect

Bartonella co-occurs with Lyme (#23) - transmitted by same ticks plus fleas. Causes neuroinflammation (#01) and vasculitis. Associated with neuropsychiatric symptoms mimicking depression (#31) - rage, anxiety, insomnia. Can cause neuropathic pain (#29). Can trigger POTS (#25) via small fiber neuropathy.

Related Causes

• Depression
• Lyme
• Neuroinflammation
• Pain
• Pots

Country-Specific Guidance

Citations

1. CDC Bartonella guidance
2. Breitschwerdt - Bartonella and neuropsychiatric disease (research ongoing) 10.3390/pathogens11101132

This information is educational, not medical advice. It does not replace consultation with qualified healthcare professionals. All screening tools are prompts for clinical evaluation, not self-diagnosis. Discuss any medication or supplement changes with your prescribing physician. If you experience red-flag symptoms, seek emergency or urgent medical care immediately.

Related Resources

• Blood Panel — Essential tests to request
• All Protocols — Evidence-based strategies
• Supplement Guide — The minimalist stack
• Supplement Timing — When to take what
• Drug Interactions — Safety reference
• Quick Reference Card — Print-friendly checklist
• Recovery Timeline — What to expect

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