Directly or indirectly from human and warm blood stool.

直接或间接来自人与温血动物粪便。

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Is there any blood or mucus in the stool?

你的大便有血或粘液吗？

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Many other conditions can cause occult blood in the stool.

许多其他条件可能会导致有潜血出现在粪便中。

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Many other conditions can cause occult blood in the stool.

许多其他条件可能会导致有潜血出现在粪便中。

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