大便习惯改变，大肠大体分盲肠、升结肠、横结肠、降结肠、乙状结肠、直肠、肛管等几段，各部均可见肿瘤发生。
二、大便习惯改变(Change in bowel habits)，这个症状是因为肿块及其产生之分泌物，可以产生肠道刺激症状，频繁出现便意，但是排出物多是粘液脓血状物，早期这些“假性腹泻...
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结果：11例结肠脂肪瘤患者的临床症状主要有腹痛、便血和大便习惯改变。
Results: the clinical symptoms of the 11 cases of colonic lipoma mainly includes abdominal pain, hematochezia and change of stool excretion habits.
结果大肠癌以腹痛、便血、大便习惯改变为主要症状，但早期诊断情况不乐观。
Results: the prime symptoms of colorectal cancer are abdominal pain, hematochezia and change of stool customs. But the early diagnosis for colorectal cancer is difficult.
结果全组临床表现以腹痛、腹块、体重下降、发热、便血和大便习惯改变为主。
Results The main clinical symptoms were abdominal pain, abdominal mass, loss of weight, fever, bloody stools and altered bowel habits.
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