近期排便显现这四种反常，可能是直肠癌前兆
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">高<span style="color: black;">专家</span> 重疾不重</p>
<div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://pic4.zhimg.com/80/v2-9b94da0babe818a31e82db81bee2444b_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;">直肠癌的表现多种多样，有近1/3的<span style="color: black;">病人</span>在<span style="color: black;">初期</span><span style="color: black;">乃至</span><span style="color: black;">无</span>任何<span style="color: black;">反常</span>，<span style="color: black;">因此</span>要时刻观察。<span style="color: black;">尤其</span>是排便<span style="color: black;">显现</span>以下几种<span style="color: black;">状况</span><span style="color: black;">必定</span>要格外<span style="color: black;">重视</span>：</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">01<span style="color: black;">没</span>痛样血便</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">一般</span><span style="color: black;">状况</span>下，在直肠癌形成的初期，在大便与癌肿摩擦时，会<span style="color: black;">导致</span>癌肿表面的血管破裂、<span style="color: black;">流血</span>，<span style="color: black;">引起</span><span style="color: black;">病人</span>大便<span style="color: black;">一边</span><span style="color: black;">显现</span><span style="color: black;">显著</span>、<span style="color: black;">鲜嫩</span>的血痕，这种症状<span style="color: black;">常常</span>会和痔疮混淆，患者<span style="color: black;">自己</span>很难判断，<span style="color: black;">乃至</span>是临床<span style="color: black;">亦</span>曾有过误诊的<span style="color: black;">状况</span>！</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">而随着直肠癌病情<span style="color: black;">持续</span><span style="color: black;">发展</span>，<span style="color: black;">病人</span>便血症状就可<span style="color: black;">出现</span>改变，<span style="color: black;">常常</span>会排<span style="color: black;">流血</span>液、粪便以及粘液混合在<span style="color: black;">一块</span>的血便，血液以暗红色最为多见。当直肠癌<span style="color: black;">发展</span>到<span style="color: black;">必定</span>程度、局部癌组织糜烂坏死之后，<span style="color: black;">病人</span>还会排出脓血便、血液中掺杂着血块或坏死组织的恶臭粪便！<span style="color: black;">因此</span><span style="color: black;">倘若</span>近期<span style="color: black;">忽然</span>排出了混合<span style="color: black;">没</span>痛样的血便、大便散发出<span style="color: black;">反常</span>的恶臭味，这就可能是直肠癌到来的信号。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">02大便习惯<span style="color: black;">错乱</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">近期在<span style="color: black;">无</span>任何诱因的<span style="color: black;">状况</span>下，<span style="color: black;">忽然</span>大便次数<span style="color: black;">增加</span>、<span style="color: black;">连续</span>两周以上，且反复有腹泻症状、排便不净、里急后重感等表现，这<span style="color: black;">亦</span>可能是直肠癌表现。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">由于</span>在直肠癌肿形成之后，肿瘤本身以及分泌物都会对肠道黏膜<span style="color: black;">导致</span><span style="color: black;">剧烈</span>刺激，<span style="color: black;">从而</span>改变<span style="color: black;">病人</span>大便习惯、<span style="color: black;">显现</span>假性腹泻表现，且在初期<span style="color: black;">周期</span>，<span style="color: black;">病人</span>假性腹泻<span style="color: black;">常常</span>是<span style="color: black;">出现</span>在清晨起床后不久。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">03肠道狭窄、梗阻症状</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">直肠肿瘤会随着癌细胞分裂而<span style="color: black;">持续</span>增长，它可绕着肠壁形成周径浸润，<span style="color: black;">引起</span>肠腔变得越来越狭窄。<span style="color: black;">尤其</span>是出<span style="color: black;">此刻</span>直肠和结肠交界处的癌变，在发展中极容易诱发梗阻症状，<span style="color: black;">病人</span>可有大便形状变细、排便困难、便秘、腹痛腹胀等多个症状。而随着排便困难日益严重，在<span style="color: black;">病人</span>的下腹部有时还会刺及到条索状的<span style="color: black;">反常</span>肿块。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">04肛门<span style="color: black;">病痛</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">倘若</span><span style="color: black;">病人</span><span style="color: black;">显现</span>的是低位直肠癌，在肠癌发展并浸润肛管之后，<span style="color: black;">病人</span>就可<span style="color: black;">显现</span><span style="color: black;">反常</span>肛门<span style="color: black;">病痛</span>症状，这种<span style="color: black;">病痛</span>会随着病情发展<span style="color: black;">逐步</span>加深、<span style="color: black;">病痛</span>时间延长。而一旦癌肿累及到了肛管括约肌之后，<span style="color: black;">病人</span>不仅会有<span style="color: black;">病痛</span>感，<span style="color: black;">乃至</span>还会<span style="color: black;">逐步</span>发展为肛门失禁、大便难以<span style="color: black;">掌控</span>！</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">针对</span>有肠癌家族史、45岁以上、曾患过慢性肠道<span style="color: black;">疾患</span>的人群而言，除了要时刻关注身体变化外，还需<span style="color: black;">定时</span>进行直肠癌筛查，<span style="color: black;">例如</span>肛门指检、肠镜<span style="color: black;">检测</span>，都是直肠癌<span style="color: black;">平常</span>的筛查方式。</p>
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