Can Lyme Disease Cause Stomach Problems? Gastroparesis and GI Symptoms Explained

Lyme disease may cause nausea, vomiting, reflux, and stomach pain
Autonomic dysfunction can disrupt digestive motility
Gastroparesis and abdominal pain may be overlooked

Can Lyme disease cause stomach problems? Yes. In some patients, Lyme disease may disrupt the autonomic nervous system, leading to nausea, vomiting, reflux, abdominal pain, bloating, constipation, diarrhea, food intolerance, and delayed stomach emptying known as gastroparesis.

For years, gastrointestinal symptoms in Lyme disease patients were often dismissed as unrelated to the illness. But growing evidence suggests autonomic dysfunction may play an important role in many of these symptoms.

For an overview of broader symptom patterns, see Lyme disease symptoms.

How Lyme Disease Affects the Digestive System

Lyme disease can disrupt the autonomic nervous system, which regulates digestive motility.

When digestive motility slows, symptoms can affect nearly every stage of digestion—from stomach emptying to movement through the intestines.

When this system is impaired, patients may develop nausea, vomiting, reflux, bloating, abdominal pain, constipation, diarrhea, food intolerance, and delayed gastric emptying.

This reflects a motility problem—not simply a stomach disorder.

Although gastrointestinal involvement is considered uncommon, several reports suggest Lyme disease can affect the digestive tract in different ways. A 1999 study identified PCR evidence of Borrelia burgdorferi DNA in gastrointestinal biopsy specimens from patients with gastritis, duodenitis, and colitis. More recent case reports have described Lyme disease presenting with severe abdominal pain, inflammatory colitis, and gastrointestinal symptoms that initially mimicked inflammatory bowel disease.

Case Report: Severe Gastroparesis in Lyme Disease

A 25-year-old woman with chronic Lyme disease developed progressive gastrointestinal symptoms that became severe.

Her illness began with loss of appetite and progressed to constant nausea, vomiting, reflux, regurgitation, and inability to tolerate solid food.

She underwent gallbladder removal, but symptoms returned.

Eventually, a feeding tube was placed and she required total parenteral nutrition (TPN) to maintain weight.

Imaging showed delayed stomach and small intestine emptying—consistent with gastroparesis.

Despite multisystem illness, Lyme disease was not treated.

Autonomic Dysfunction, POTS, and GI Symptoms

A Mayo Clinic study evaluating children with orthostatic intolerance and POTS found gastrointestinal symptoms were extremely common.

Symptoms included abdominal pain, nausea, constipation, vomiting, diarrhea, bloating, weight loss, fatigue, dizziness, and headache.

The investigators also identified delayed gastric emptying, slow colonic transit, and impaired gastrointestinal motility.

The findings support a connection between autonomic dysfunction and gastrointestinal symptoms.

Although the study did not specifically evaluate Lyme disease patients, autonomic dysfunction is commonly reported in Lyme disease and POTS.

Why These Symptoms Are Often Missed

Gastrointestinal symptoms in Lyme disease are frequently attributed to unrelated digestive disorders, anxiety, medication side effects, or isolated nerve dysfunction.

However, Lyme disease may affect multiple overlapping systems including neurologic regulation, autonomic signaling, inflammation, and immune function.

This can create a multisystem illness pattern that is difficult to recognize.

Learn more about medical dismissal in Lyme disease.

Lyme Disease Can Mimic Other Gastrointestinal Disorders

Lyme disease does not always present with classic joint pain or a rash. In some patients, gastrointestinal symptoms dominate the clinical picture, making diagnosis challenging.

Recent case reports have described Lyme disease presenting as inflammatory bowel disease with abdominal pain and bloody diarrhea. Other reports describe children with Lyme neuroborreliosis whose first symptom was severe abdominal pain caused by painful nerve root inflammation, known as radiculitis, leading to extensive gastrointestinal evaluation before the correct diagnosis was established.

These reports highlight the importance of considering Lyme disease in patients with unexplained gastrointestinal symptoms who live in or have traveled to tick-endemic regions.

Common Gastrointestinal Symptoms of Lyme Disease

Patients with Lyme disease may experience a wide range of digestive symptoms. Although these symptoms are not unique to Lyme disease, they may occur when autonomic dysfunction affects gastrointestinal motility.

• Nausea
• Vomiting
• Abdominal pain, including pain caused by radiculitis
• Stomach pain after eating
• Bloating
• Acid reflux or heartburn
• Constipation
• Diarrhea
• Food intolerance
• Early satiety (feeling full quickly)
• Delayed stomach emptying (gastroparesis)
• Weight loss in more severe cases

Some patients report nausea, bloating, abdominal discomfort, or feeling full shortly after eating, particularly when delayed stomach emptying develops.

Persistent gastrointestinal symptoms accompanied by fatigue, dizziness, lightheadedness, brain fog, palpitations, or orthostatic intolerance may suggest autonomic nervous system involvement rather than an isolated gastrointestinal disorder.

Can Lyme Disease Cause Gastroparesis?

Gastroparesis is delayed stomach emptying caused by impaired stomach motility. Patients often experience nausea, vomiting, early satiety, bloating, abdominal pain, reflux, weight loss, and poor oral intake.

Because the autonomic nervous system regulates stomach contractions, autonomic dysfunction associated with Lyme disease may contribute to gastroparesis in some patients.

Although published reports remain limited, clinicians should consider Lyme disease in the differential diagnosis when gastroparesis develops alongside neurologic symptoms, orthostatic intolerance, or other manifestations of tick-borne illness.

Can Treating Lyme Disease Improve Gastrointestinal Symptoms?

Treatment depends on the underlying cause of gastrointestinal symptoms. When symptoms are related to Lyme disease or associated autonomic dysfunction, improvement may occur as the underlying illness is treated.

Patients with severe gastroparesis or nutritional compromise may also require dietary modification, medications that improve stomach motility, temporary enteral feeding, or parenteral nutritional support while the underlying illness is addressed.

Most gastrointestinal symptoms have many possible causes. Persistent abdominal pain, bloody diarrhea, recurrent vomiting, gastrointestinal bleeding, fever, dehydration, or significant weight loss should prompt timely medical evaluation.

Could Persistent Infection Play a Role?

Some studies suggest Borrelia burgdorferi may persist after standard antibiotic treatment. Animal models have demonstrated viable organisms following antimicrobial exposure.

Although the clinical significance remains debated, an important question remains:

Could ongoing infection contribute to persistent gastrointestinal symptoms in some patients?

Persistent symptoms after treatment may also reflect autonomic dysfunction, immune dysregulation, tissue injury, coinfections, or other mechanisms rather than active infection alone.

Although gastrointestinal symptoms are less common than neurologic or musculoskeletal manifestations, clinicians should consider Lyme disease in the differential diagnosis when unexplained abdominal pain, nausea, vomiting, gastroparesis, or colitis occurs in patients with possible tick exposure.

Frequently Asked Questions

Can Lyme disease cause gastroparesis?

Yes. Lyme disease may contribute to gastroparesis through autonomic nervous system dysfunction, which can impair stomach motility and delay gastric emptying.

Can Lyme disease cause nausea and vomiting?

Yes. Nausea and vomiting have been reported in Lyme disease patients, particularly when autonomic dysfunction affects the digestive tract.

Can Lyme disease cause stomach pain?

Yes. Some patients experience abdominal pain, stomach pain, bloating, reflux, or cramping as part of Lyme disease or associated autonomic dysfunction. In rare cases, abdominal pain may result from Lyme neuroborreliosis causing painful radiculitis.

Can Lyme disease mimic inflammatory bowel disease?

Yes. Although uncommon, published case reports describe Lyme disease presenting with abdominal pain, colitis, and bloody diarrhea that initially resembled inflammatory bowel disease. A careful history, including possible tick exposure, may help establish the correct diagnosis.

Can Lyme disease cause diarrhea or constipation?

Yes. Either diarrhea or constipation may occur when autonomic dysfunction disrupts normal intestinal motility.

Can Lyme disease cause acid reflux?

Some patients report reflux or heartburn as part of gastrointestinal dysmotility. Delayed stomach emptying may contribute to these symptoms.

What is gastroparesis?

Gastroparesis is delayed stomach emptying caused by impaired nerve or muscle function that slows digestion.

How does autonomic dysfunction affect digestion?

The autonomic nervous system regulates stomach and intestinal movement. Dysfunction can impair gastrointestinal motility, resulting in nausea, vomiting, bloating, constipation, reflux, abdominal pain, diarrhea, and delayed stomach emptying.

Why are gastrointestinal symptoms often missed in Lyme disease?

Digestive symptoms are frequently attributed to primary gastrointestinal disorders, medication side effects, or anxiety rather than neurologic or autonomic dysfunction related to Lyme disease.

Clinical Takeaway

Lyme disease may contribute to gastrointestinal symptoms through autonomic nervous system dysfunction, neurologic involvement, or, in rare cases, direct gastrointestinal manifestations.

Patients may experience nausea, vomiting, abdominal pain, stomach pain, bloating, reflux, constipation, diarrhea, food intolerance, or delayed stomach emptying (gastroparesis). Although these symptoms have many possible causes, clinicians should consider Lyme disease when gastrointestinal complaints occur together with neurologic symptoms, orthostatic intolerance, or a history of tick exposure.

Published reports have also described Lyme disease presenting as inflammatory bowel disease with colitis and bloody diarrhea, as well as Lyme neuroborreliosis presenting with isolated abdominal pain caused by radiculitis. These uncommon presentations highlight the broad clinical spectrum of Lyme disease.

Recognizing autonomic dysfunction and other neurologic manifestations may reduce unnecessary testing, shorten diagnostic delays, and improve patient care.

Related Articles

These related articles explore autonomic dysfunction, neurologic Lyme disease, abdominal pain, and other gastrointestinal manifestations of Lyme disease.

Autonomic Dysfunction in Lyme Disease
POTS: An Autonomic Dysfunction in Lyme Disease Patients
Neurologic Lyme Disease Presenting as Abdominal Pain
Brain Fog in Lyme Disease
Lyme Disease Symptoms Guide

References

1. Manini ML, Barazi A, Khemani D, et al. Gastrointestinal motility evaluation in children with orthostatic intolerance: Mayo Clinic experience. Neurogastroenterology & Motility. 2020:e13863.
2. Fried M, Abel M, Pietruccha D, et al. The Spectrum of Gastrointestinal Manifestations in Lyme Disease. J Pediatr Gastroenterol Nutr. 1999;29(4).
3. Savasta S, Fiorito I, Foiadelli T, et al. Abdominal pain as first manifestation of Lyme neuroborreliosis in children, case report and review of literature. Italian Journal of Pediatrics. 2020;46:172.
4. Cantrell MB, Kahlon A, Thompson M. Lyme Disease Manifesting as Inflammatory Bowel Disease. Am J Gastroenterol. 2023;118(Suppl):S1678-S1679.
5. Stolk JM, van Nieuwkoop C, van der Voorn M, van Erp S, van Burgel ND. Ticking off diagnoses of abdominal pain: early neuroborreliosis with radiculopathy. Neth J Med. 2018;76(7):336-338.
6. Rao SS, Patcharatrakul T. Diagnosis and Treatment of Dyssynergic Defecation. J Neurogastroenterol Motil. 2016;22(3):423-435.

Dr. Daniel Cameron, MD, MPH
Lyme disease clinician with over 30 years of experience and past president of ILADS.

Symptoms • Testing • Coinfections • Recovery • Pediatric • Prevention