大便有血，痔疮和直肠癌傻傻分不清？肛肠医生教你三招，容易鉴别
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">大便带血是胃肠外科很<span style="color: black;">平常</span>的症状，便血的<span style="color: black;">原由</span>最<span style="color: black;">平常</span>的是痔疮，直肠癌，肛裂。其中，痔疮和直肠癌<span style="color: black;">通常</span>都是<span style="color: black;">没</span>痛的便血，症状是比较类似的，有时候很难鉴别。下面<span style="color: black;">咱们</span>来分别介绍一下，这三种<span style="color: black;">疾患</span>便血的特点;</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">1.痔疮</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">痔疮从本质上来讲是直肠下段的静脉曲张，多见于<span style="color: black;">青年</span>人，喝酒<span style="color: black;">或</span>吃辛辣刺激的<span style="color: black;">食品</span>，诱发便血，便血的表现为大便后滴血，<span style="color: black;">或</span>用纸擦屁股的时候，纸上面有血，<span style="color: black;">通常</span>都是鲜血，大便与血液不混合。有时候<span style="color: black;">能够</span>看见内痔从肛门脱出，有的能够自己回去，有的<span style="color: black;">必须</span><span style="color: black;">病人</span>自己用手辅助<span style="color: black;">才可</span>回去。</p>
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<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">2.直肠癌</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">直肠癌是直肠的恶性肿瘤，<span style="color: black;">平常</span>于中老人<span style="color: black;">病人</span>，50岁以上多见，<span style="color: black;">因为</span>直肠肿瘤距离肛门有<span style="color: black;">必定</span>的距离，便血的颜色常为暗红色，可与大便相混合，肿瘤脱落坏死，可<span style="color: black;">显现</span>脓血便。直肠癌<span style="color: black;">病人</span>还<span style="color: black;">能够</span><span style="color: black;">显现</span>大便变细，排便困难，腹泻<span style="color: black;">或</span>便秘，腹痛等其他的消化道症状，以及体重下降，消瘦等全身症状。</p>
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<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">3.肛裂</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">肛裂是一种良性病，多见于<span style="color: black;">青年</span>女性，直肠粘膜<span style="color: black;">显现</span>了破损，产生小的溃疡，溃疡<span style="color: black;">平常</span>于直肠的后壁，<span style="color: black;">由于</span>大便的时候，直肠后壁的压力最大，容易<span style="color: black;">导致</span>直肠粘膜撕裂。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">肛裂有非常典型的临床三联征，分别是<span style="color: black;">病痛</span>，便血和便秘。<span style="color: black;">起始</span>排便的时候，大便经过肛裂的溃疡面<span style="color: black;">导致</span><span style="color: black;">病痛</span>，排出大便后缓解，随后肛门括约肌痉挛，可产生<span style="color: black;">连续</span>的<span style="color: black;">病痛</span>感。</p>
<div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://pic4.zhimg.com/80/v2-4d3841ea6917ac547076b286b0c8c463_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;">便血的症状与痔疮类似，<span style="color: black;">通常</span>是便后滴血，<span style="color: black;">或</span>擦屁股的时候，纸上面有血。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">最后的症状<span style="color: black;">便是</span>便秘，肛裂<span style="color: black;">病人</span><span style="color: black;">通常</span>都合并有便秘，<span style="color: black;">由于</span>排便的时候有非常剧烈的<span style="color: black;">病痛</span>感，而恐惧排便，久而久之<span style="color: black;">导致</span>粪便更为干硬，便秘又可使肛裂加重，如此往复形成恶性循环。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">怎样</span>鉴别诊断：</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">从上面<span style="color: black;">咱们</span>列出的临床表现就<span style="color: black;">能够</span>做出初步的诊断，再<span style="color: black;">协同</span>以下的<span style="color: black;">检测</span>，就<span style="color: black;">能够</span>确诊了：</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">（1）肛门镜<span style="color: black;">检测</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">经过</span>肛门镜<span style="color: black;">检测</span>，<span style="color: black;">能够</span>在直视下观察直肠粘膜的形态，<span style="color: black;">倘若</span>是痔疮，<span style="color: black;">能够</span>看见曲张的静脉，肛裂<span style="color: black;">能够</span>看见小溃疡，低位直肠癌<span style="color: black;">能够</span>看见直肠肿物。</p>
<div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://pic1.zhimg.com/80/v2-f71ee6ebef48345d12a098f16f400b74_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;">（2）直肠指诊</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">这<span style="color: black;">亦</span>是一项非常<span style="color: black;">要紧</span>的<span style="color: black;">检测</span>，中国80%<span style="color: black;">上下</span>的直肠癌都<span style="color: black;">能够</span><span style="color: black;">经过</span>肛门指诊<span style="color: black;">发掘</span>，<span style="color: black;">大夫</span>将手指头伸进<span style="color: black;">病人</span>的肛门，<span style="color: black;">倘若</span>是痔疮<span style="color: black;">能够</span>摸见柔软的痔团，<span style="color: black;">倘若</span>是直肠癌，<span style="color: black;">能够</span>摸见直肠肿物，质地硬，指套可有血染。</p>
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<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">（3）肠镜<span style="color: black;">检测</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">有些</span>距离肛门比较远的直肠癌（大于等于8cm），<span style="color: black;">通常</span><span style="color: black;">经过</span>肛门指诊<span style="color: black;">不可</span><span style="color: black;">发掘</span>，<span style="color: black;">必须</span>做肠镜<span style="color: black;">检测</span>来确诊。肠镜<span style="color: black;">能够</span><span style="color: black;">检测</span><span style="color: black;">全部</span>大肠，排除多发肿瘤，<span style="color: black;">同期</span><span style="color: black;">能够</span>取病理，<span style="color: black;">知道</span>诊断。</p>
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<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">痔疮和直肠有时候很容易混淆，有时候<span style="color: black;">病人</span><span style="color: black;">同期</span>有痔疮和直肠癌，千万不要只满足于痔疮的诊断，从而<span style="color: black;">引起</span>漏诊。</p>
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