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In tropical counties where safe drinking water is still a day dream for all, get pain in abdomen due to amoebic colitis.It affects left side of colon commonly.If affects the right side and caecum (the beginning part of colon) patient get pain in the right side simulating an acute appendicitis.Here a history of loose or mucous motion usually precedes.The differentiating point is that here patient gets pain in the left side of lower abdomen as well.In the left side the site of pain is identical to the spot in the right called an amoebic point.Also patient may complain of pain in the upper abdomen as well.Routine stool examination will reveal the presence of amoeba.To exclude co-existing or isolated appendicitis an ultrasonogram may aid the clinical examination.Treatment is medicinal and conservative.Prevention is a good strategy.Taking raw vegetable cleaned in a hygienic way as wall as treated drinking water will prevent it to a great extent.