站立期
Standing period
以上为机器翻译结果，长、整句建议使用 人工翻译 。
病因还不太清楚，家族史、怀孕或是常期站立的工作经常是引起痔的危险因素。
The cause is not definitely known but family history, pregnancy or having an occupation that involves a lot of standing are possible risk factors.
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