**11. Conclusion**

Infectious esophagitis is a rare disease caused by viral, bacterial, or fungal agents or other organisms and infections. Patients who are immune suppressed, including people with granulocytopenia, lymphopenia etc., are usually prone to infections. Infection with *Candida* is the common cause of infectious esophagitis, but infections with HSP, bacteria and CMV are rare and accounts in up to 16% cases of infectious esophagitis in people with immunosuppression. Endoscopic observable ulcers with erythema, exudate and hemorrhage characterized bacterial esophagitis, and persistent symptoms include severe dysphagia and odynophagia, which may be a source of bacterial sepsis that will require prompt antibiotic treatment. Thus, infectious esophagitis causes morbidity in patients and careful diagnosis and treatment processes need to be followed in order to achieve better prognosis and outcomes for sufferers.
