放射治療可用來治療發生在各個部位的固态瘤，包括腦、乳房、子宮頸、咽喉、肺、胰、前列腺、皮膚、胃、子宮或軟組織的肉瘤，治療白血病和淋巴瘤有時也會使用輻射。放射治療所使用的輻射劑量取決於多項因素，例如癌症種類以及是否有可能破壞週遭組織和器官。如同其他的治療方式，放射治療仍然有其副作用存在。
在正常细胞生长期间经常会发生基因突变。但细胞含有一种可识别何时发生错误并修复错误的机制。有时会漏掉某种错误。这种情况可能导致细胞癌变。
If a human could live very long adequate, it is unavoidable that at least certainly one of her or his cells would ultimately accumulate a set of mutations enough for most cancers to build. ^
Surgical procedure is the principal means of treatment for most isolated, strong cancers and will Engage in a task in palliation and prolongation of survival. It is usually a significant part of the definitive analysis and staging of tumors, as biopsies are usually needed.
Carcinoma: Cancers derived from epithelial cells. This group incorporates most of the most common cancers and contain nearly all All those in the breast, prostate, lung, pancreas and colon. Many of these are from the adenocarcinoma kind, which suggests which the most cancers has gland-like differentiation.
治療某些白血病和淋巴瘤則需要使用高劑量的化療或全身放射治療。這樣的治療方式是先將患者原有的骨髓細胞完全破壞，避免進行骨髓細胞移植時發生排斥作用。進行骨髓移植之後，依靠患者本身的復原能力，重新進行造血功能。移植的來源除了接受親屬或配對符合的捐贈者之外，也可將病患本身的骨髓細胞以及周邊造血幹細胞（英语：peripheral blood stem cell）先取出存放待日後移植所需，稱為自體移植（英语：autologous transplantation）。
Radiation to your breast reduces the power of that breast to make milk and improves the risk of mastitis. Also, when chemotherapy is offered right after beginning, most of the medications look in breast milk, which could harm the baby.[271]
化学致癌物，例如石棉、烟草烟雾成分、酒精、黄曲霉毒素（一种食品污染物）、 砷（一种饮水污染物）、烷化剂、酰化剂、亚硝胺类、芳香胺、环氧化物等；巴豆油、 激素、酚类等物品，会增加致癌物质的效应。
药物治疗通常可分为：并发症治疗药物以及癌症靶向治疗药物。前者通常是治疗 患癌后出现的一些并发症如局部感染、病毒感染和疼痛。这类药物本身并不能治疗 癌症，但是能减轻患者的痛苦程度。而后者即常说的化疗，有多种类型，常见药物 有利妥昔单抗、曲妥珠单抗等。这些药物对肿瘤更有针对性，效率高、疗效显著、 不良反应较少。但仅适用于具有某类靶点的肿瘤患者，具有局限性；而且治疗费用 较高，可能会出现耐药性(即药物失效)，很难实现治愈。
包括新辅助化疗、围手术期化疗、辅助化疗、根治性化疗、诱导化疗、巩固性化疗、姑息性化疗、维持化疗、转化性化疗、低剂量节律化疗等。
An extra mutation may trigger the loss of a tumor suppressor gene, disrupting the apoptosis signaling pathway and immortalizing the mobile.
Which treatment 癌症 plans are used is dependent upon the kind, spot and grade in the cancer in addition to the individual's overall health and Choices. The treatment method intent may or may not be curative.[citation necessary]
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有些恶性肿瘤，并不被称为癌或肉瘤，而是以“恶性……瘤”的名词出现，如恶性黑色素瘤。