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WebMD Symptom Checker

Black (tar) colored stools and Upset stomach

WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms black (tar) colored stools and upset stomach including Indigestion, Gastrointestinal bleeding, and Peptic ulcer.

There are 21 conditions associated with black (tar) colored stools and upset stomach. The links below will provide you with more detailed information on these medical conditions from the WebMD Symptom Checker and help provide a better understanding of causes and treatment of these related conditions.