Assertion: endoscope's thing | /r/CapableOf | explain ulcer
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text: If you try medication and still have heartburn accompanied by other alarming symptoms such as difficult or painful swallowing, bleeding, anaemia, weight loss, or recurrent vomiting , after one to two months then an endoscopy might be recommend to check for other things that might explain your troubles, like ulcers or acid burns (erosions) on the wall of the esophagus or stomach.