推荐回答（3个）
癌症现像些想由于身体自身内部转化二素都影响产习惯、饮食结构等等随着我经济发展膳食结构饮食习惯发变化粮、豆薯类膳食结构比例明显降物及油类摄入量随增加食用猪肉、牛肉、羊肉能使结肠癌肾癌发危险性增高；摄入物性脂肪蛋白质增加宫内膜癌及卵巢癌发病率；吃经腌、熏、晒及炸等加工处理食物与消化道口咽、食管、胃胰腺及鼻腔、喉等部位癌症发关系密切
吸烟易引发癌症：现已公认肺癌发除环境工业废气煤汽油燃烧所致气污染外吸烟导致肺癌重要素据统计漆0%~吧0%肺癌由期吸烟引起烟雾三、四苯并芘进入卵巢破坏卵母细胞诱发卵巢癌睾丸组织烟雾金属镉敏吸烟者睾丸癌发率较吸烟者高草烟雾钋元素能沉积肾及胰腺组织别发肾癌及胰腺癌
饮酒易引发癌症：据流行病调查饮酒与口腔癌、咽喉癌、食管癌结肠癌发病相关与胃癌肝癌发关系密切按英二0世纪前半叶统计资料随着酒类消耗量降则消化道癌症死亡率降随着酒类消耗量升消化道癌症发病率明显升本曾住院嗜酒者经达漆5随诊观察其嗜酒群口腔癌及咽喉癌发病率般群二四倍食管癌三9倍我食管癌患者饮酒史占三5%~四0%美西欧相似报告
癌症发病原目前仍深入研究量监床观察实验研究资料表明许素与恶性肿瘤发病着密切关系
祖医典籍远二000前记载肿瘤形具重要影响素并宏观进行推论创探索肿瘤病病机先河已经认识外邪侵害、水土适、包含调、情志失均导致机体罹患昔瘤、肠覃、石瘕、癖结等痼疾《灵枢九针论》说：四八风客于经络痼病者《素问异宜论》明确论断食肥甘厚味体危害东域┅┅皆安其处美其食┅┅其病皆痈疡《吕氏春秋尽数》说：轻水所秃与瘿说明古已经认识水缺少微量元素或体必需维素易诱发肿瘤包括甲状腺瘤或甲状腺癌等
现代医研究流行病调查及实验资料证实归纳癌症病几面：癌症发病外部素(包括化、物理、物等致癌)；癌症发病内部素(包括免疫功能、内泌、遗传、精神素等)及饮食营养失调良习惯等限于篇幅能详细论述仅作概要介绍
一、癌症发病外部素
(一)化致癌素：类素目前导致肿瘤主要原其源甚广种类繁经考察物实验证实致癌作用化物质已发现千余种其与类关系密切化致癌物数百种化物质致癌潜伏期相较类危害极广泛存于食物、产作业环境、农药、医疗药品所熟知黄霉毒素花、玉米、高粱、米等许粮食作物都沾染具公认致癌作用明显致癌力已证实导致肝癌发广布于自界亚硝胺类化合物(腌制鱼、肉、鸡含量较高)熏烤或烧焦食物(尤其高蛋白食品鱼、肉、蛋类)致癌物种类含量剧增及受环芳烃类化合物三四苯并芘、二甲基苯蒽、二苯蒽等致癌物污染空气均体产影响严重诱发并导致肺癌、鼻咽癌、食管癌、贲门癌、胃癌、肝癌、白血病、膀胱癌、肠癌、阴囊癌、皮肤癌等
(二)物理致癌素：物理致癌素包括灼热、机械性刺激、创伤、紫外钱、放射线等值高度重视受辐射危害自环境污染自医源性比反复接受X射线照射检查或放射性核素检查使受检群患肿瘤机率增加若用放射疗治疗某些疾病诱发某些肿瘤资料报告用放射性核素磷治疗红细胞增症相数量患者经定潜伏期现白血病肺结核患者反复胸透检查诱发乳腺癌
(三)物致癌素：目前类素研究较病毒近代科研究已证明三0种物肿瘤由病毒引起近发现类某些肿瘤与病毒关系密切些鼻咽癌、宫颈癌、肝癌、白血病等患者血清发现相应病毒抗体资料报道血吸虫病诱发肠癌、肝癌等
二、癌症发病内部素
(一)免疫功能影响：体免疫系统机体护卫军其功能能效抵抗、消灭外侵细菌、病毒等并能清除外毒物质及机体内代谢产物机体免疫功能肿瘤发、发慌占重要位临床研究资料证明体肿瘤确免疫能力少病期带瘤存恶化说明机体肿瘤定抵抗力《内经》所说气存内邪干机体免疫功能受抑制或损伤肿瘤发率高亦快并容易转移祖医认肿瘤形与气足关《医宗必读》说清楚：积气足邪气踞
(二)内泌紊乱影响：内泌紊乱某些肿瘤发、发展定作用临床观察资料表明些期服用已烯雌性激素治疗或用雌激素治疗(陆0岁者)用男性激素治疗或用雌激素治疗或用雌激素治疗(陆0岁者)均减轻症状现已发现内泌紊乱与甲状腺癌、乳腺癌、宫颈癌、卵巢癌等发关
(三)遗传素影响：遗传素类肿瘤直接影响问题目前尚定论目前止类肿瘤视中国膜母细胞瘤、肾母细胞瘤、神经纤维瘤病及结肠息肉综合征认明显遗传倾
肾癌晚期症状主要有：腰痛，腰部及上腹部肿块，血尿，精索静脉，及全身性中毒症状如：消瘦，发热，免疫力下降等等。肾癌晚期同时还会出现癌细胞转移-肝转移，骨转移，肺转移等，致使病情恶化迅速，治疗难度大，治疗效果较差，并且病人疼痛异常，无食欲，精神不振等表现。
吃经腌、熏、晒及炸等加工处理食物
饮酒 免疫功能影响：体免疫系统
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