What Causes a Benign Esophageal Stricture and How Is It Managed?

Answer in brief: Benign esophageal strictures most often result from chronic reflux injury, eosinophilic esophagitis, postoperative/anastomotic disease, radiation, caustic injury or other inflammatory injury. Management requires two parallel steps: exclude malignancy and define the cause with endoscopy/biopsy, then restore luminal diameter with graded dilation while treating the underlying disease to prevent recurrence.

Dysphagia pattern suggests mechanical narrowing

Progressive solid-food dysphagia is typical of a stricture. Rapid progression, marked weight loss, bleeding or an irregular lesion raises concern for malignancy and requires biopsy before assuming a benign diagnosis.

Common benign causes

Peptic stricture from chronic reflux.
Eosinophilic esophagitis with fibrostenotic remodeling.
Schatzki ring and related ring/web disorders.
Postsurgical or anastomotic stricture.
Radiation injury.
Caustic ingestion.
Medication injury and less common inflammatory dermatoses.

Biopsy the cause, not just the narrowing

Biopsy is essential when malignancy is possible and should also be obtained for suspected eosinophilic esophagitis even when mucosal appearance is subtle. Endoscopic appearance alone cannot reliably exclude EoE.

Dilation is effective but must be controlled

Balloon and bougie techniques are both used. The target diameter and number of sessions depend on stricture complexity, symptoms and cause. Complex, long, angulated or very tight strictures require more caution and often repeated sessions.

Treat the disease driving recurrence

Peptic strictures require durable acid suppression. EoE requires anti-inflammatory therapy—dietary elimination, PPI, swallowed topical corticosteroid or biologic therapy in selected patients—because dilation treats fibrosis but not inflammation.

Refractory strictures need a different strategy

When adequate lumen cannot be maintained despite repeated dilation and disease control, options can include intralesional steroids, incisional therapy, temporary stenting or specialized referral depending on stricture type.

Questions trainees should be able to answer

Which clinical features raise concern for malignant rather than benign stricture?
Why must EoE be treated even after successful dilation?
What makes a stricture “complex”?

Frequently asked questions

Is dilation curative? It relieves narrowing, but recurrence is common if the underlying inflammatory or reflux process is not controlled.

Should every stricture be biopsied? When malignancy is a concern, yes; and mucosal biopsies are important when EoE is possible.

Can EoE strictures be dilated safely? Yes, in experienced hands; dilation is an accepted treatment for fibrostenotic disease but should be paired with anti-inflammatory therapy.

Free further reading from Dr. Thomson

GI Practice Review — free book library
Endoscopy and Diagnostic Imaging — free book library

References

1. Katz PO, Dunbar KB, Schnoll-Sussman FH, et al. ACG Clinical Guideline for GERD. Am J Gastroenterol. 2022;117:27-56.

2. Dellon ES, et al. ACG Clinical Guideline: Diagnosis and Management of Eosinophilic Esophagitis. Am J Gastroenterol. 2025.

3. Thomson ABR. Endoscopy and Diagnostic Imaging. CAPstone Academic Publishers; 2012.

Educational use only. This article is intended for clinicians and trainees and does not replace patient-specific medical judgment or local guidance.