[Contrast study on the cases of peptic ulcer evident bleeding induced causes].

To suppose violent movement, slow overfatique, irritation of emotions, over-eating, empty stomach, eating rotten food, over drinking, use of non-steroid anti-inflammatory drug and non-use of H2-receptor blocking agents as the evident bleeding induced causes of peptic ulcer, comparison between 139 cases with peptic ulcer evident bleeding (PUEB) and 139 cases with peptic ulcer non-bleeding and contrast analysis of the cases with PUEB themselves was conducted. Results showed that the ratio of PUEB with those exposed in various causes were bigger than that of the contrast. PUEB themselves were obviously associated with violent movement (P < 0.01), slow overfatigue (P < 0.05), over-eating (P < 0.05), over-drinking (P < 0.025) and non-use of H2-receptor blocking agents (P < 0.005) in different degrees. The result of self-contrast of the patients with PUEB agrees with that of pair-matched analysis.