80%的大肠癌发掘时已然晚期，哪些症状“暗示”大肠癌？
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><a style="color: black;">大肠癌</a><span style="color: black;">包含</span>结肠癌和<a style="color: black;">直肠癌</a>，<span style="color: black;">因为</span>大肠<span style="color: black;">位置于</span>人体的内部，在肚子里面，从外面看不见，<span style="color: black;">因此</span>，在癌变的<span style="color: black;">初期</span>，<span style="color: black;">病人</span><span style="color: black;">常常</span>不会<span style="color: black;">显现</span><span style="color: black;">显著</span>的症状，<span style="color: black;">亦</span><span style="color: black;">无</span>特异性，从而容易漏诊和误诊，<span style="color: black;">引起</span>治疗延误了<span style="color: black;">机会</span>，<span style="color: black;">非常多</span><span style="color: black;">病人</span><span style="color: black;">发掘</span>的时候，就<span style="color: black;">已然</span>是中晚期了。<span style="color: black;">那样</span>，<span style="color: black;">那些</span>症状“暗示”大肠癌呢？</p>
<h2 style="color: black; text-align: left; margin-bottom: 10px;"><span style="color: black;">第1</span>，腹部不适</h2>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">腹部不适<span style="color: black;">常常</span>是最<span style="color: black;">平常</span>的症状，<span style="color: black;">包含</span>腹部隐痛，腹胀，<a style="color: black;">消化不良</a>，消瘦，体重下降等<span style="color: black;">状况</span>。这些是非常<span style="color: black;">平常</span>的症状，<span style="color: black;">然则</span><span style="color: black;">无</span>任何的特异性，人到中年<span style="color: black;">忽然</span><span style="color: black;">显现</span><span style="color: black;">以上</span>症状，<span style="color: black;">意见</span>马上去医院<span style="color: black;">检测</span>，避免误诊和漏诊。</p>
<div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://pic1.zhimg.com/80/v2-10ec8926d6a6dafc0786d4cd35a94708_720w.webp" style="width: 50%; margin-bottom: 20px;"></div>
<h2 style="color: black; text-align: left; margin-bottom: 10px;">第二，<a style="color: black;">便血</a><span style="color: black;">或</span>黑便</h2>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">这<span style="color: black;">亦</span>是非常<span style="color: black;">平常</span>的症状，肿瘤表面的血管破溃<span style="color: black;">或</span><span style="color: black;">流血</span>，可<span style="color: black;">引起</span><span style="color: black;">病人</span><span style="color: black;">显现</span>鲜血便<span style="color: black;">或</span>黑便，可伴有粘液。<span style="color: black;">显现</span>黑便<span style="color: black;">或</span>血便，<span style="color: black;">必定</span>要<span style="color: black;">导致</span><span style="color: black;">注意</span>，尽早去医院<span style="color: black;">检测</span>，并且诊断。</p>
<div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://pic3.zhimg.com/80/v2-ce41e7b5e3a166df45a57f4cacafdc32_720w.webp" style="width: 50%; margin-bottom: 20px;"></div>
<h2 style="color: black; text-align: left; margin-bottom: 10px;">第三，排便习惯改变</h2>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">忽然</span><span style="color: black;">显现</span>腹泻，便秘，<span style="color: black;">或</span>腹泻与便秘相交替，还有的<span style="color: black;">病人</span><span style="color: black;">显现</span>排便急促，大便刺激的症状，<span style="color: black;">每日</span>大便次数<span style="color: black;">增多</span>，<span style="color: black;">然则</span>每次都<span style="color: black;">无</span>多少大便，<span style="color: black;">叫作</span>为里急后重。<span style="color: black;">显现</span>这些<span style="color: black;">状况</span>，<span style="color: black;">常常</span>提示肠道有病变。</p>
<div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://pic3.zhimg.com/80/v2-f7dfb72606b0b9f4fed33620937ec816_720w.webp" style="width: 50%; margin-bottom: 20px;"></div>
<h2 style="color: black; text-align: left; margin-bottom: 10px;">第四，排便困难</h2>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">这个症状<span style="color: black;">亦</span>是<span style="color: black;">非常</span><span style="color: black;">平常</span>的，肿瘤<span style="color: black;">持续</span>的生长，阻塞肠道，<span style="color: black;">引起</span>粪便<span style="color: black;">经过</span>困难，<span style="color: black;">显现</span>排便困难，有可能使得<span style="color: black;">全部</span>肠管堵塞，<span style="color: black;">乃至</span><span style="color: black;">显现</span>肛门停止排气排便，腹胀，腹痛，呕吐等肠梗阻的症状。</p>
<div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://pic1.zhimg.com/80/v2-e65459c73cd7b09ffc754137ec901fd0_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;">大肠癌的其他比较少见的症状，还<span style="color: black;">包含</span>腹部包块，贫血，远处转移，肠穿孔等表现。<a style="color: black;">大肠癌</a>是可防可控的，<span style="color: black;">意见</span>40岁<span style="color: black;">上下</span><span style="color: black;">起始</span>接受肠镜的筛查，<span style="color: black;">倘若</span><span style="color: black;">无</span>问题，<span style="color: black;">能够</span>5至10年后再次复查肠镜。</p>
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