Hematochezia, stomach ache, nausea, what's going on?

Hematochezia stomach pain nausea is likely to be caused by infection with helicobacter pylori caused by gastritis, gastric ulcer and other diseases, there may be gastrointestinal bleeding caused by hematochezia. You can be admitted to the hospital for gastroscopy, if stomach disease, can use gastric mucosa protective agent treatment.