Patient with Blastocystis Hominis Associated with Unelucidated Pathogenicity Case Report

ABSTRACT Objective: Blastocystis hominis is one of the parasites that found commonly in the human intestinal tract. It has been described as a non-pathogenic protozoan parasite, even if it has been claimed to cause intestinal diseases for many years. Therefore, the role and treatment of the parasite in forming the symptoms of the gastrointestinal system are controversial. There may be clinical symptoms such as non-specific abdominal pain, diarrhea, anorexia, vomiting and weight loss, and sometimes it can be manifested in an invasive table, such as rare symptoms like rectal bleeding. Case: In this report, we present Blastocystis hominis in stool examination of our patient who was admitted to our clinic with non-specific gastrointestinal symptoms for approximately one month. Metronidazole therapy for this parasitic infection was initiated and was observed to recover in the patient’s clinic. Conclusion: We want to report that Blastocyctis hominis, which has been exposed to many different definitions in the past, provides additional support for its recognition as a human pathogen with this case report. Keyswords: Blastocystis Hominis, Stool, İnfection, Parasite, Pathogenicity.