结直肠癌的征兆
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">初期</span>结直肠癌<span style="color: black;">无</span><span style="color: black;">显著</span>的症状及体征,而当病情发展到<span style="color: black;">必定</span>程度时,就会<span style="color: black;">显现</span>大便习惯改变,便秘<span style="color: black;">或</span>是腹泻,<span style="color: black;">亦</span>可两者交替<span style="color: black;">显现</span>,肛门坠胀,里急后重等肠道症状。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">有些<span style="color: black;">病人</span>可能会<span style="color: black;">显现</span>便血的症状,<span style="color: black;">通常</span><span style="color: black;">显现</span>便血症状时,<span style="color: black;">病人</span>都比较紧张,这才去医院进行<span style="color: black;">检测</span>,<span style="color: black;">按照</span>便血量的不同及肿瘤部位的不同,<span style="color: black;">病人</span>的便血<span style="color: black;">状况</span>会有所不同,有些<span style="color: black;">病人</span>便暗红色血,有些便鲜红色血,这两种<span style="color: black;">流血</span>量<span style="color: black;">通常</span>不太多,呈间歇性<span style="color: black;">显现</span>,<span style="color: black;">倘若</span>是便果酱样大便,提示肿瘤的位置较高,还有<span style="color: black;">有些</span><span style="color: black;">病人</span>便黏液血便。</p>
<div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://pic2.zhimg.com/80/v2-f1ab72c902960f48971722cd1b266ba5_720w.webp" style="width: 50%; margin-bottom: 20px;"></div>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">晚期结直肠癌<span style="color: black;">病人</span>会<span style="color: black;">显现</span>腹胀,腹痛,排气排便停止等肠梗阻的表现,<span style="color: black;">通常</span>不会<span style="color: black;">显现</span>恶心呕吐等症状,但<span style="color: black;">倘若</span><span style="color: black;">显现</span>提示小肠可能<span style="color: black;">已然</span>受侵。<span style="color: black;">倘若</span>结直肠癌肿瘤长到<span style="color: black;">必定</span>的程度,腹部的肿瘤就可触摸到,这种现象多见于<span style="color: black;">身患</span>右半结肠癌的<span style="color: black;">病人</span>。<span style="color: black;">因为</span>肿瘤的生长<span style="color: black;">必须</span>消耗<span style="color: black;">身体</span>的营养物质,<span style="color: black;">因此</span><span style="color: black;">病人</span>会<span style="color: black;">显现</span>疲倦,乏力,面色苍白,消瘦,食欲不振等症状,<span style="color: black;">倘若</span>继发感染,可<span style="color: black;">显现</span>发热。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">另一</span>,右半结肠癌跟左半结肠癌<span style="color: black;">因为</span>解剖位置的不同、血供不同、肠内容物和生理功能等的不同,其临床表现偏重会有所不同,<span style="color: black;">因为</span>右半结肠内为稀,糜粥样内容物,以吸收水电解质为其<span style="color: black;">重点</span>的生理功能,<span style="color: black;">通常</span>依次<span style="color: black;">显现</span>触到腹部肿物,腹痛及贫血等症状时优先<span style="color: black;">思虑</span>右半结肠癌;</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">左半结肠癌内多为成形干燥块状内容物,其<span style="color: black;">重点</span>生理功能是储存大便以及排便,易<span style="color: black;">导致</span>肠梗阻,<span style="color: black;">通常</span>依次<span style="color: black;">显现</span>便血,腹痛及排便次数<span style="color: black;">增加</span>等症状时多优先<span style="color: black;">思虑</span>左半结肠癌;<span style="color: black;">通常</span>依次<span style="color: black;">显现</span>便血,排便次数<span style="color: black;">增加</span>以及大便形状<span style="color: black;">出现</span>改变,如大便变细等症状时多优先<span style="color: black;">思虑</span>直肠癌。</p>
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