Eosinophilic esophagitis (EoE) is a chronic allergic inflammatory disease of the esophagus that is triggered by specific foods. EoE presents across the lifespan, with symptoms of failure to thrive, poor weight gain, feeding intolerance, food refusal, vomiting, dysphagia and food impaction [1,2]. Any patient may present with symptoms of EoE, regardless of preexisting risk factors. All patients with symptoms of esophageal dysfunction suggestive of EoE should receive screening via esophagogastroduodenoscopy (EGD) with esophageal biopsies [3,4]. However, many patients with EoE develop symptoms slowly over time, and the frequency of compensatory eating behaviors is high in this population [5][6][7]. Therefore, it is important to consider which patient populations may be at increased risk for the development of EoE and ask targeted screening questions in order to pinpoint esophageal symptoms. Here we review epidemiologic and clinical features that may increase suspicion for EoE.A family or personal history of the preexisting allergic disease should increase the suspicion for EoE, as it has been reproducibly demonstrated in multiple cohorts that individuals with EoE have a high prevalence of allergic comorbidity [8,9]. As atopic disorders are prevalent, screening for EoE is an important consideration for general pediatricians in addition to allergists. A recent meta-analysis by González-Cervera et al. examined 21 observational case-control studies of 53,542 individual EoE patients, demonstrating that EoE patients have higher rates of allergic comorbidity than the background population [10]. The odds of a personal history of atopy in EoE patients was increased, including reported rates of eczema (odds ratio [OR] 2.85, 95% confidence interval [CI] 1.87-4.34), allergic rhinitis (AR; OR 5.09, 95% CI 2.91-8.90), and asthma (OR 3.01, 95% CI 1. 96-4.62). Using a large pediatric virtual birth cohort, we have measured these risk relationships in individuals revealed that history of AD (hazard ratio [HR] 3.2, 95% confidence interval [CI] 2.2-4.6), IgE-mediated food allergy (IgE-FA; HR 9.1, 95% CI 6.5-12.6), and asthma (HR 1.9, 95% CI 1.3-2.7) are independently and cumulatively associated with subsequent EoE diagnosis (Table 1) [11].The relationship between IgE-FA and EoE is particularly strongchildren with IgE-FA develop EoE at 9 times the rate of children without IgE-FA [12]. IgE-FA and EoE have