止痛藥，如嗎啡、羥可酮（英语：oxycodone）、止吐劑及其他藥物用來抑制噁心和嘔吐，都是常用來減輕癌症患者症狀的藥物。
癌症的治療無論是化療、手術或放療都是對身體有極大負擔，並且在發生惡性轉移後，無論是何種方式都是很難徹底治癒。所以在癌症的治療仍然是人類面對的極大考驗。在目前對於年老的癌症患者，或許找出能維持生活品質並讓其能平靜走向生命旅程的終點的治療方式，會是比積極消除癌細胞而使用副作用極大的治療方式要來的實際且重要。
If a human could Dwell extended adequate, it truly is inevitable that at least considered one of his or her cells would inevitably accumulate a set of mutations adequate for most cancers to create. ^
Other elements are appropriate: obese folks have higher levels of some hormones linked to most cancers and a greater rate of All those cancers.[95] Women who just take hormone alternative therapy have an increased hazard of creating cancers linked to People hormones.
Some forms of most cancers are named for the scale and condition of the cells below a microscope, for example big mobile carcinoma, spindle mobile carcinoma and smaller-mobile carcinoma.
免疫系统对癌症的异常反应。在某些情况下，身体的免疫系统可能通过攻击健康细胞来对癌症作出反应。这些非常罕见的反应称为副肿瘤综合征，会导致各种体征和症状，如行走困难和癫痫发作。
梗阻：与瘤体增大堵塞正常腔道有关，如胃肠癌梗阻引发呕吐、排便困难，胰头癌胆汁排出受限引发黄疸等。
Western conceptions of sufferers' legal rights for people with most cancers consist of a obligation to totally disclose the health care situation to the person, and the right to interact in shared conclusion-producing in a means that 癌症 respects the individual's own values. In other cultures, other rights and values are chosen. Such as, most African cultures benefit full families as opposed to individualism. In elements of Africa, a prognosis is often made so late that heal is impossible, and treatment, if obtainable in the least, would immediately bankrupt the family members. Because of these aspects, African healthcare companies are likely to Permit close relatives choose whether or not, when And exactly how to reveal the analysis, and they tend to take action slowly and gradually and circuitously, as the person demonstrates curiosity and an power to cope with the grim news.
癌症治療會有許多後遺症，過程十分不易，因此治療後的照顧相當重要，包括疼痛控制、改善食慾、心理調適等，需要不同醫療團隊的合作，提高癌症病人的生活品質。（延伸閱讀：不是放棄治療！剖析緩和與安寧照護的真相）
抽烟、饮酒、熬夜等不良习惯，以及性别、衰老和肥胖等生理因素，也是某些癌症的风险因素。
An extra mutation may well bring about the loss of a tumor suppressor gene, disrupting the apoptosis signaling pathway and immortalizing the cell.
The Dutch professor Francois de la Boe Sylvius, a follower of Descartes, thought that all sickness was the end result of chemical procedures Which acidic lymph fluid was the reason for most cancers. His contemporary Nicolaes Tulp believed that cancer was a poison that bit by bit spreads and concluded that it absolutely was contagious.[230]
疼痛。尽管不是所有癌症都会引起疼痛，但癌症或癌症治疗会引起疼痛。药物和其他方法可以有效地治疗癌性疼痛。
术前要综合评估恶性肿瘤侵及层次、范围以确定手术方式及切除范围，应尽可能争取将肿物完全切除，减少转移的可能，术后标本应送病理明确肿瘤类型、分期、有无转移等信息，以指导术后治疗。