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。
These nanodrones are built to harness the strength of organic killer (NK) cells, which play a crucial role in your body's immune reaction from tumors. By directing these NK cells especially to your sites of tumors, the nanodrones can proficiently focus the immune process's assault over the most cancers cells, perhaps resulting in greater results for clients.[270]
良性腫瘤指腫瘤細胞未發生轉移與侵入周遭組織的情形，反之則稱為惡性腫瘤，多數會影響生理功能的腫瘤都是惡性腫瘤。
肿块：常为位置表浅肿瘤的首发症状，位置较深者不易发现，生长快，易转移，可在短时间内出现一处或多处较大肿块。
另類醫學的治療方式包含許多種類的系統或療法，此類治療以現代醫學標準的觀點來看，通常不被認為是有效及安全的。但是醫師仍然可以利用這樣的治療方法來「補充」標準治療所不能提供的，例如身體的舒適或是心靈上的平靜，重燃起患者對治療癌症的希望。
中医治疗癌症在我国由来已久，常用治法包括扶正培本法、清热解毒法、活血化瘀法、软坚散结法。
Chemotherapy will be the treatment method of cancer with a number of cytotoxic anti-neoplastic prescription drugs (chemotherapeutic agents) as A part of a standardized routine. The phrase encompasses a number of drugs, which can be divided into wide groups for example alkylating agents and antimetabolites.
多數癌症是自發性的（英语：sporadic），但是有些癌症還是與遺傳有關，通常遺傳到缺陷的腫瘤抑制基因時會有較顯著的影響和症狀。舉例而言：
Laser therapy takes advantage of high-depth gentle to take care of cancer by shrinking or destroying tumors or precancerous 癌症 growths. Lasers are most commonly employed to deal with superficial cancers that are over the surface of the body or perhaps the lining of inner organs. It is actually made use of to deal with basal cell skin cancer and also the very early levels of Other folks like cervical, penile, vaginal, vulvar, and non-tiny mobile lung cancer. It is frequently combined with other remedies, such as surgical procedures, chemotherapy, or radiation therapy.
通过化疗有可能治愈或疗效较好，适用于绒癌、白血病、淋巴瘤、多发性骨髓瘤、胚胎性横纹肌肉瘤、睾丸癌、尤文肉瘤、神经母细胞瘤、小细胞肺癌等。
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恶性肿瘤生长迅速，可在短时间内快速增大，为外生性或浸润性生长，影像学检查通常界限不清，常继发出血、坏死、溃疡等变化，组织病理学特征为分化差、异型性大、可见病理性核分裂像，对机体的伤害大，会破坏机体组织结构及功能，易复发、转移，致死率高。
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。