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Blastocystis Hominis


Military Personnel
  • The aim of this study was to determine the prevalence of B. hominis in Polish military personnel returning from peacekeeping missions in Iraq and Afghanistan. In total, 1,826 stool samples were examined.[ncbi.nlm.nih.gov]
  • In the reported case, a 41-year-old Italian man came to the clinician's observation reporting cramps, bloating and watery diarrhoea a few days after drinking water indicated as unpotable from a fountain in a farm area.[ncbi.nlm.nih.gov]
  • Only the associations between infection with B. hominis and E. nana with diarrhea were statistically significant.[ncbi.nlm.nih.gov]
Abdominal Pain
  • The mean number of B. hominis was significantly high in patients complaining of diarrhoea and abdominal pain.[ncbi.nlm.nih.gov]
  • Four weeks post transplant she developed tenesmus, mucoid stool mixed with blood and lower abdominal pain.[ncbi.nlm.nih.gov]
  • Diarrhoea was seen in 53 (26%) while constipation, constipation alternating with diarrhoea and tenesmus were observed in a few patients. 49 out of 58 patients with an increased gastro-colic reflex were positive for blastocystis hominis (84%).[journals.lww.com]
Abdominal Mass
  • The initial radiologic evaluation showed free air in the abdominal cavity and an abdominal mass. Abdominal fluid submitted for cytologic examination was diagnostic of acute inflammation with mixed bacteria and abundant cystlike forms of B hominis.[ncbi.nlm.nih.gov]
Lower Abdominal Pain
  • Four weeks post transplant she developed tenesmus, mucoid stool mixed with blood and lower abdominal pain.[ncbi.nlm.nih.gov]
  • In this case report we describe a 49 year-old man who presented with chronic urticaria, angioedema and soft stool consistency.[ncbi.nlm.nih.gov]
  • Abstract Urticaria and angioedema are easily recognized disorders, but in at least 70 percent of individuals, chronic episodes of urticaria are of unknown causes.[aaaai.org]
Insect Bite
  • Acute urticaria has many causative factors, which may include infections, medications (nonsteroidal anti-inflammatory drugs, antibiotics, contraceptives and others), insect bites, physical stimuli, allergens or underlying systemic disorders.[ncbi.nlm.nih.gov]


  • It may be identified during a workup for gastrointestinal symptoms, usually in stool examined for ova and parasites.[ncbi.nlm.nih.gov]
Colonic Stricture
  • We describe a case in which B hominis was identified by cytologic examination in a patient with Crohn's disease who underwent colonoscopy and brushing of a transverse colon stricture.[ncbi.nlm.nih.gov]


  • (Outcomes/Resolutions) The prognosis of Blastocystis Hominis Infection can depend on the overall health of the affected individual.[dovemed.com]
  • Prognosis Blastocystis can remain in the intestines for weeks, months, or years. Some patients with this organism in their stools who have symptoms improve with no treatment at all.[diagnose-me.com]
  • I think I read in a paper that long-term prognosis was worse for those that underwent treatment. I tried to read the papers about blastocystis and I couldn't reach any conclusion other that no one understands it.[ibsgroup.org]


  • Extensive evaluation failed to reveal any other potential etiologic agent of acute colitis.[ncbi.nlm.nih.gov]
  • Conclusion : Blastocystis hominis could be the etiology of chronic urticaria. Downloads Download data is not yet available.[jhsci.ba]


  • The aim of this study was to evaluate the molecular epidemiology of B. hominis and its subtype distribution in Ahvaz, southwest of Iran.[ncbi.nlm.nih.gov]
  • SYMTOMATOLOGY AND EPIDEMIOLOGICAL FACTORS ASSOCIATED WITH Blastocystis hominis INFECTION. Parasitol. latinoam. [online]. 2002, vol.57, n.3-4, pp.96-102. ISSN 0717-7712. .[scielo.conicyt.cl]
Sex distribution
Age distribution


  • The pathophysiologic mechanism of the diarrhea is not clear. Not all patients having large parasite burdens are symptomatic. Metronidazole, 1 to 2 gm/day orally in divided doses, is the treatment of choice.[ncbi.nlm.nih.gov]
  • […] variety of disorders, such as diarrhea, abdominal pain, fatigue, constipation, flatulence, chronic gastrointestinal illnesses (irritable bowel syndrome), and skin rash or urticaria. results support the hypothesis that Blastocystis might be linked to the pathophysiology[alexmanos.co.uk]
  • Pathophysiological variability of different genotypes of human Blastocystis hominis Egyptian isolates in experimentally infected rats. Parasitol Res. 2008; 102 (5): 853-60[ DOI ][ PubMed ] 10. Kaya S, Cetin ES, Aridogan BC, Arikan S, Demirci M.[jjmicrobiol.com]


  • For the first time in the literature we show that eradication of Blastocystis hominis can prevent the development of both symptomatic Hashimoto's thyroiditis and chronic urticaria.[ncbi.nlm.nih.gov]
  • Health All Procedures IV Nutrition Smart Snacking Hormonal Health Consultations LUSIT Programme - Exclusive to The Bradford Clinic FITgenes Program Wellbeing Programs for Optimum Health New Gallery Our Team Blogs Preventative Health Recipes Body Aesthetic[bradfordclinic.com.au]

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