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Diarrhea
Stomachache
Have a fever
Blood in stool
I have left lower abdominal pain
Have nausea
Fatigued
Not seeing your symptoms? No worries!
Infection of the gut with microorganisms called amoeba. It can be caused by contaminated food and water.
Your doctor may ask these questions to check for this disease:
Treatment involves antibiotics to kill the amoeba. This may take several weeks to ensure the parasites are fully cleared. In severe cases of dehydration, hospitalization may be necessary for monitoring and administering fluids through a needle in the vein.
Reviewed By:
Maxwell J. Nanes, DO (Emergency Medicine)
Dr Nanes received a doctorate from the Chicago College of Osteopathic Medicine and went on to complete a residency in emergency medicine at the Medical College of Wisconsin. There he trained at Froedtert Hospital and Children's Hospital of Wisconsin in the practice of adult and pediatric emergency medicine. He was a chief resident and received numerous awards for teaching excellence during his time there. | | After residency he took a job at a community hospital where he and his colleagues worked through the toughest days of the COVID-19 pandemic. |
Yoshinori Abe, MD (Internal Medicine)
Dr. Abe graduated from The University of Tokyo School of Medicine in 2015. He completed his residency at the Tokyo Metropolitan Health and Longevity Medical Center. He co-founded Ubie, Inc. in May 2017, where he currently serves as CEO & product owner at Ubie. Since December 2019, he has been a member of the Special Committee for Activation of Research in Emergency AI of the Japanese Association for Acute Medicine. | | Dr. Abe has been elected in the 2020 Forbes 30 Under 30 Asia Healthcare & Science category.
Content updated on Feb 13, 2025
Following the Medical Content Editorial Policy
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Q.
Is it Dysentery? Why Your Gut is Inflamed and Medically Approved Next Steps
A.
There are several factors to consider: dysentery is a serious intestinal infection from bacteria or parasites that inflame the colon, causing bloody or mucus-filled diarrhea, severe cramps, and fever, unlike the brief watery diarrhea of typical food poisoning. Medically approved next steps are immediate rehydration, avoiding antidiarrheals unless a clinician says so, and getting prompt care with stool testing to guide antibiotics or antiparasitics if you have blood in stool, fever, dehydration, or are high risk; see complete guidance and prevention tips below.
References:
* Khan, WA., et al. "Shigellosis: An Overview of Pathogenesis, Clinical Manifestations, and Management." *Curr Infect Dis Rep*, vol. 21, no. 9, 2019, p. 30.
* Surawicz, Christina M. "Acute bacterial colitis: a review of the etiology, diagnosis, and management." *Expert Rev Gastroenterol Hepatol*, vol. 15, no. 10, 2021, pp. 1195-1202.
* Li, Chunli, et al. "Differential diagnosis of inflammatory bowel diseases from infectious colitis." *World J Gastroenterol*, vol. 29, no. 3, 2023, pp. 434-445.
* Zuo, Ting, et al. "The Gut Microbiome and Immune System in Inflammatory Bowel Disease: From Pathogenesis to Therapeutic Target." *Int J Mol Sci*, vol. 24, no. 4, 2023, p. 3962.
* Hage, Rita, et al. "Management of acute gastroenteritis in children and adults: A systematic review and meta-analysis." *J Med Virol*, vol. 95, no. 9, 2023, e29013.
Q.
Amoeba? Why Your Body Is Reacting & Medically Approved Next Steps
A.
Amoeba infection symptoms, causes, and doctor-approved next steps: most cases are due to Entamoeba histolytica and can cause diarrhea, cramps, and sometimes bloody stools; severe pain, fever, or dehydration warrant prompt medical care. Diagnosis is with stool testing, treatment is antiparasitic medication plus hydration and hygiene to prevent spread; see below for key red flags, who is at higher risk, travel and prevention tips, and when to seek urgent care.
References:
* Singh H, Bansal N, Sehgal R. Amoebiasis: A Concise Review. Trop Parasitol. 2022 Jan-Mar;12(1):4-14. doi: 10.4103/tp.tp_51_21. Epub 2022 Mar 22. PMID: 35509795; PMCID: PMC9040058.
* Sriram R, Padgett K, Qvarnstrom Y, DaSilva A. Free-Living Amoebae: Pathogens, Infections, and Emerging Challenges. Microbiol Spectr. 2022 Dec 21;10(6):e0031822. doi: 10.1128/spectrum.00318-22. PMID: 36542171; PMCID: PMC9775200.
* Visvesvara GS, Marciano-Cabral F. Naegleria fowleri Infection: Diagnosis, Treatment, and Prevention. Trop Med Infect Dis. 2019 Jul 10;4(3):104. doi: 10.3390/tropicalmed4030104. PMID: 31295982; PMCID: PMC6789523.
* Shirley DT, Farr L, Watanabe K, Moonah S. Entamoeba histolytica Infection: Diagnosis, Clinical Course, and Treatment of Amoebic Colitis. Curr Infect Dis Rep. 2018 Dec 20;20(13):52. doi: 10.1007/s11908-018-0654-2. PMID: 30570624; PMCID: PMC6376839.
* Parija SC, Mandal J, Ponnambath DK. Amoebiasis: a review of the current diagnostic and treatment strategies. Indian J Med Microbiol. 2018 Jan-Mar;36(1):4-11. doi: 10.4103/ijmm.IJMM_17_466. PMID: 29778235.
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Link to full study:
https://www.medrxiv.org/content/10.1101/2024.08.29.24312810v1Shirley, D. A., Farr, L., & Watanabe, K. (2018). A review of the global burden, new diagnostics, and current therapeutics for amebiasis. Open forum infectious.
https://academic.oup.com/ofid/article-abstract/5/7/ofy161/5049601Li, J., Cui, Z., Li, X., & Zhang, L. (2021). Review of zoonotic amebiasis: Epidemiology, clinical signs, diagnosis, treatment, prevention and control. Research in veterinary science.
https://www.sciencedirect.com/science/article/pii/S0034528821000576Shirley, D. A., Hung, C. C., & Moonah, S. (2020). Entamoeba histolytica (amebiasis). Hunter's tropical medicine and emerging.
https://www.sciencedirect.com/science/article/pii/B9780323555128000946